Look up concave or concavity in Wiktionary, the free dictionary. Concave or concavity may refer to: Concave lens Concave mirror Concave function, the...

In mathematics, a concave function is one for which the function value at any convex combination of elements in the domain is greater than or equal to...

lens with two concave surfaces is biconcave (or just concave). If one of the surfaces is flat, the lens is plano-convex or plano-concave depending on the...

A simple polygon that is not convex is called concave, non-convex or reentrant. A concave polygon will always have at least one reflex interior angle—that...

been called the "concave" Hollow Earth hypothesis or skycentrism. Cyrus Teed, a doctor from upstate New York, proposed such a concave Hollow Earth in 1869...

Concave cake (Chinese: 凹蛋糕; pinyin: āodàngāo, half-cooked cake) became popular in Chinese society after a Taiwanese variety show introduced it. The cake...

In game theory, a concave game is a generalization of the normal-form game defined by Rosen. He extended the theorem on existence of a Nash equilibrium...

Log-concave may refer to: Logarithmically concave function Logarithmically concave measure Logarithmically concave sequence This disambiguation page lists...

R n {\displaystyle \mathbb {R} ^{n}} is called logarithmically concave (or log-concave for short) if, for any compact subsets A and B of R n {\displaystyle...

A tornado, also known as a twister, is a rapidly rotating column of air that extends vertically from the surface of the Earth to the base of a cumulonimbus...

analysis, a non-negative function f: Rn → R+ is logarithmically concave (or log-concave for short) if its domain is a convex set, and if it satisfies the...

Convex and Concave is a lithograph print by the Dutch artist M. C. Escher, first printed in March 1955. It depicts an ornate architectural structure with...

widely known as the Nuss procedure, involves slipping in one or more concave steel bars into the chest, underneath the sternum. The bar is flipped to...

an) of nonnegative real numbers is called a logarithmically concave sequence, or a log-concave sequence for short, if ai2 ≥ ai−1ai+1 holds for 0 < i < n...

replacing it. Other types of ceiling include the cathedral ceiling, the concave or barrel-shaped ceiling, the stretched ceiling and the coffered ceiling...

to go past these limiting cases, creating concave or nonconvex pyritohedra. The endo-dodecahedron is concave and equilateral; it can tessellate space with...

{\displaystyle \cup } (or a straight line like a linear function), while a concave function's graph is shaped like a cap ∩ {\displaystyle \cap } . A twice-differentiable...

reflecting surface. The surface may be either convex (bulging outward) or concave (recessed inward). Most curved mirrors have surfaces that are shaped like...

a convex polygon is sometimes called a concave polygon, and some sources more generally use the term concave set to mean a non-convex set, but most authorities...

minimizing convex functions over convex sets (or, equivalently, maximizing concave functions over convex sets). Many classes of convex optimization problems...

of the polygon does not cross itself. All convex polygons are simple. Concave: Non-convex and simple. There is at least one interior angle greater than...

(self-intersecting, or crossed). Simple quadrilaterals are either convex or concave. The interior angles of a simple (and planar) quadrilateral ABCD add up...

convex, and to functions that are concave in their first argument and convex in their second argument (known as concave-convex functions). Formally, let...

with either the convex or concave side facing the object. It is possible to thread the cemented doublet, with its concave side facing the object, into...

surface of the container or another object, produced by surface tension. A concave meniscus occurs when the attraction between the particles of the liquid...

In geography, a bight (/baɪt/) is a concave bend or curvature in a coastline, river or other geographical feature, or it may refer to a very open bay...

the Gaussian distribution are common examples of quasi-concave functions that are not concave. A function that is both quasiconvex and quasiconcave is...

form angles, which appear in two forms: concave angles and convex angle. Concave angles have slightly concave sides and open to the medial (inner) area...

Rogers (1804–1882) took over the lead. By the end of the 19th century, the concave gratings of Henry Augustus Rowland (1848–1901) were the best available...

surfaces of the ischium with the ilium and the pubis are separated by a large concave surface (on the upper side of the ischium a part of the open hip joint...

Pseudopostega concava is a moth of the family Opostegidae. It was described by Donald R. Davis and Jonas R. Stonis, 2007. "A Revision of the New World...

presented a burning mirror to the Royal Society. It consisted of seven concave glass mirrors, each about one foot in diameter. It is estimated that it...

glen is a valley, typically one that is long and bounded by gently sloped concave sides, unlike a ravine, which is deep and bounded by steep slopes. The...

it is a point where the function changes from being concave (concave downward) to convex (concave upward), or vice versa. For the graph of a function...

Rhododendron davidsonianum, the concave-leaf rhododendron, is a species of flowering plant in the heath family Ericaceae that is native to the forests...

themselves are called simple, and they can be classified as either convex or concave. We here use the term "stellated" to refer to the ones that intersect themselves...

In differential geometry, the Gaussian curvature or Gauss curvature (symbol Κ, named after Carl Friedrich Gauss) of a smooth surface in three-dimensional...

variations, is a metal cooking utensil. It is round and usually curved: the concave side is used as a wok or frying pan, the convex side for cooking flatbreads...

In mathematics, curvature is any of several strongly related concepts in geometry that intuitively measure the amount by which a curve deviates from being...

convex-concave if it is a convex function of x for any fixed y, and a concave function of y for any fixed x. When f is continuous and convex-concave, and...

functions are used in the study of majorization. A function f is 'Schur-concave' if its negative, −f, is Schur-convex. Every function that is convex and...

Odorrana tormota, also known as the concave-eared torrent frog, is a species of frog native to China. Its distribution is restricted to Huangshan Mountains...

program in which f is nonnegative and concave, g is positive and convex, and S is a convex set is called a concave fractional program. If g is affine, f...

(German: Sonnengewehr) is a theoretical orbital weapon, which makes use of a concave mirror mounted on a satellite, to concentrate sunlight onto a small area...

allegedly perceive that the middle of the column was diminishing in a concave curve halfway up the column, and entasis corrects this. The word we apply...

triangulated. Polygons with only one concave vertex can always be fan triangulated, as long as the diagonals are drawn from the concave vertex. It can be known if...

The Curmsun Disc is a purportedly Viking Age convex-concave gold disc that gained scholarly attention in 2014. The disc, which is apparently dedicated...

stream. It is produced as a watercourse erodes the sediments of an outer, concave bank (cut bank or river cliff) and deposits sediments on an inner, convex...

inner surface faces the specimen. A Lieberkühn reflector is typically a concave mirror (see illustrations), though one description uses a flat mirror at...

Three further topologically distinct hexahedra can only be realised as concave acoptic polyhedra. These are defined as the surfaces formed by non-crossing...

{\pi }{n}}.} A concave bipyramid has a concave polygon base, and one example is a concave tetragonal bipyramid or an irregular concave octahedron. A bipyramid...

polygon that is entirely visible. Note that if the subject polygon was concave at vertices outside the clipping polygon, the new polygon may have coincident...

form from the original solidus, becoming wider and thinner, as well as concave (scyphate) in form. Later usually shortened to stamenon (Greek: στάμενον)...

edges that do not generate new vertices, and the other one to the isotoxal concave simple polygons. Polygrams include polygons like the pentagram, but also...

Its upper surface is smooth, concave, and forms the lower part of the semilunar notch. Its antero-inferior surface is concave, and marked by a rough impression...

(/ˌæsɪˈtæbjələm/; pl.: acetabula), also called the cotyloid cavity, is a concave surface of the pelvis. The head of the femur meets with the pelvis at the...

medial portion is the larger, and is slightly concave transversely; the lateral is convex above, slightly concave below. "Trochlear | Definition of Trochlear...

the sequence F-G-H is concave. The following table illustrates rules for determining whether a sequence of points is convex, concave, or flat: Convex hull...

the result is then inverted over the thumb to give the characteristic concave form. The name orecchiette (Italian pronunciation: [orekˈkjɛtte]; singular:...

with log-concave distribution. Since the product of two log-concave functions is log-concave, the joint distribution of (X,Y) is also log-concave. Log-concavity...

Geodesic Length Two-dimensional Surface Plane Area Polygon Simple Convex Concave Star Regular Reuleaux Triangle Centers Altitude Hypotenuse Pythagorean...

distribution, Boulenophrys parva is known under many common names, including concave-crowned horned toad, lesser stream horned frog, mountain horned frog, brown...

Sinum concavum, common name the concave ear moon snail, is a species of predatory sea snail, a marine gastropod mollusk in the family Naticidae, the moon...

indicate direction. In its simplest form, an arrow is a triangle, chevron, or concave kite, usually affixed to a line segment or rectangle, and in more complex...

(slightly "anteverted") toward the bladder, with the anterior part slightly concave. Between one in three to one in five uteruses is retroverted, or oriented...

portions. The superior or temporal portion, convex from above downward, concave from before backward, forms a part of the temporal fossa, and gives attachment...

will be focused to a single spot. For a diverging lens (for example a concave lens), the focal length is negative and is the distance to the point from...

intersecting circles. Kites as described here may be either convex or concave, although some sources restrict kite to mean only convex kites. A quadrilateral...

polearm with a curving single-edged blade with the cutting edge on the concave side of the blade. Its blade bears a superficial resemblance to that of...

cast into a beechwood hoop or mold which gives the cheese its distinctive concave shape. It is pressed for 24 hours, taken out of the hoops and then cooled...

A Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas...

convexo-concave valves implanted fractured in this way, with the patient dying in two-thirds of those cases. The FDA withdrew approval of the convexo-concave...

temperature as well as in communication. African elephants have larger ears and concave backs, whereas Asian elephants have smaller ears and convex or level backs...

large eyes, large nostrils, and small muzzles. Most display a distinctive concave, or "dished" profile. Many Arabians also have a slight forehead bulge between...

is concave, presenting medially a rough, triangular area, for articulation with the maxilla (articular surface), and laterally a smooth, concave surface...

examination of the ear, nose and throat (ENT). It comprises a circular concave mirror, with a small hole in the middle, and is attached to a headband...

liner/plate, has approximately the same weight of the liner/plate. The concave side of the liner/plate is aimed at the target. An EFP's penetration is...

mathematics, concavification is the process of converting a non-concave function to a concave function. A related concept is convexification – converting...

Hollow-Mask illusion) is an optical illusion in which the perception of a concave mask of a face appears as a normal convex face. While a convex face will...

was passed to the Ministry of War Transport (MoWT) and renamed Empire Concave. In 1946, she was passed to the Norwegian Government and renamed Galtnes...

A rotating furnace is a device for making solid objects which have concave surfaces that are segments of axially symmetrical paraboloids. Usually, the...

phantasmagoria shows to project moving images of ghosts. Camera obscura Concave mirror Opaque projector Overhead projector Document camera Shadow projector...

consists of a heavy, thick chrome-plated steel disk and a rigid, slightly concave, mirrored base. Included holographic magnetic stickers can be attached...

the form of a thick and concave peripheral band, posterodistally deflected ulnar facet of the humerus, large ulna with concave and edgy posterior surface...

the same shape, the right valve being strongly concave and the left valve being flattened or concave. Sculpture consist of alternating strong and weaker...

that requires correction. A good set of gauges will offer both convex and concave sections, and allow for their application in awkward locations. Every leaf...

concern than a rapid result. The thin blade lends itself to create complex concave or convex curves. Unlike a spokeshave, it does not have a closed mouth...

have survived) before it was used on stone; with a curved adze applying concave fluting to wooden columns made from tree trunks would have been relatively...

be distinguished by their shoulder hump, larger size and broader, more concave skull.[page needed] In his book The Great Bear Almanac, Gary Brown summarized...

Geodesic Length Two-dimensional Surface Plane Area Polygon Simple Convex Concave Star Regular Reuleaux Triangle Centers Altitude Hypotenuse Pythagorean...

and equilateral polygons with more than five sides, can also be concave, and if concave pentagons are allowed then two angles are no longer sufficient...

transforming D-pad, concave analog stick tops and standard colored face buttons. Black S controllers with a transforming D-pad, concave analog stick tops...

– Used for flat and concaved surfaces and curves Concave – For use on convexed surfaces and curves Convex – For use on concaved surfaces and curves Rounded...

0<x<{\frac {\pi }{2}}} + {\displaystyle +} Increasing Concave + {\displaystyle +} Decreasing Concave 2nd quadrant, II 90 ∘ < x < 180 ∘ {\displaystyle 90^{\circ...

are shaped to accommodate surrounding pelvic structures. Overall, it is concave (curved upon itself). The base of the sacrum, the broadest and uppermost...

problem (which would be clearly indicated, such as by the function being concave rather than convex) then the definition of "proper" is defined in an analogous...

While a typical shape of a teardrop is straight-line tapering, they may be concave. This type of teardrop is also called filleting or straight. To produce...

A cavetto is a concave moulding with a regular curved profile that is part of a circle, widely used in architecture as well as furniture, picture frames...

erythrocytes (red blood cells) that are sphere-shaped rather than bi-concave disk shaped as normal. Spherocytes are found in all hemolytic anemias to...

The graph of a function with a positive second derivative is upwardly concave, while the graph of a function with a negative second derivative curves...

of uniform reddish or purplish brown. The upper half of the whorls is concave and devoid of spiral lirations, which exist only on the lower portion....

to generalize the definitions of monotone and concave/convex scalar functions to monotone and concave/convex Hermitian valued functions. These functions...

Molding of double curvature, combining the convex ovolo and concave cavetto. When the concave part is uppermost, it is called a cyma recta but if the convex...

and in the Damin ritual jargon of Australia. The tongue is more or less concave (depending on the language), and is pulled down rather than back as in...

edges of a circular triangle may be either convex (bending outward) or concave (bending inward). The intersection of three disks forms a circular triangle...

refinements. Among other tweaks, the caps of the analog sticks were given a concave design (similar to the Xbox 360 controller), the shape of the triggers...

knife-edge test is an optical test to accurately measure the shape of concave curved mirrors. It is commonly used by amateur telescope makers for figuring...

has three symmetry positions, two on vertices, and one on a midedge: A concave pentakis dodecahedron replaces the pentagonal faces of a dodecahedron with...

which self-intersect in a repetitive way. Concave polyhedra of a particular kind which alternate convex and concave or saddle vertices in a repetitive way...

density varying among geographic ranges. Adults have massive, heavily built, concave skulls, which are large in proportion to the body. The projections of the...

connects to another vertebra is very concave; however, unlike in other ceratosaurs, the front face is also concave. Like other ceratosaurs, the neck vertebra...

family in general) with the cutting edge turned opposite, convex instead of concave, so that the weapon was good for both thrusting and slashing attacks. Pole...

forward third of the blade "clipped" off. The clip itself can be straight or concave. Traditionally, the spine or unsharpened edge of the knife begins at the...

Above: a concave pentahedron viewed from its apex. Below: the same object viewed from its concave face....

quadrilateral form a parallelogram. If the quadrilateral is convex or concave (not complex), then the area of the parallelogram is half the area of the...

The great hornbill (Buceros bicornis), also known as the concave-casqued hornbill, great Indian hornbill or great pied hornbill, is one of the larger...

a point in terms of moduli of continuity. A special role is played by concave moduli of continuity, especially in connection with extension properties...

of his unusual head shape having a noticeable low depression or sunken (concave) in the top-middle of his head, while the sides rose up higher like the...

mirror of the object however same is possible for other types of mirror (concave and convex) but only for a specific conditions. However the focal length...

surfaces are rough, for the attachment of ligaments; its lateral surface is concave and is continuous below with the deep groove for the interosseous talocalcaneal...

the front of the combine to the gap between the concave and the rotating beater/cylinder. The concave is curved to match the curve of the cylinder, and...

ellipsoid. It resembles an irregular polyhedron with several slightly concave facets and surface relief of up to 20 km (12 mi). Its surface is dark,...

A five-pointed star (☆), geometrically an equilateral concave decagon, is a common ideogram in modern culture. Comparatively rare in classical heraldry...

dodecahedron with 6 rhombic and 6 trapezoidal faces. It has D3h symmetry. A concave form can be constructed with an identical net, seen as excavating trigonal...

Teller noted that any design that had the plasma held on the inside of concave magnetic fields would be naturally unstable. The cusp concept had fields...

the cut bank or concave bank (the bank with the greater radius). Continuous deposition on the convex bank and erosion of the concave bank of a meandering...

interior are called concave. A knob is an edge whose two endpoints are convex corners. An antiknob is an edge whose two endpoints are concave corners. A rectilinear...

Toreth's rank insignia consisted of one silver arrowhead and two silver concave crescents. "T'Pau - Biography, Albums, Streaming Links - AllMusic". AllMusic...

A smooth, more deeply concave depression on the lacrimal bone, which forms the medial wall of the orbital cavity, in which the lacrimal sac that drains...

a humped costal edge, pointed apex, slightly concave outer edge, hook-like inner angle and very concave inner edge. The upper part is dark brown almost...

Xenodiscaceae. Doulingoceras produced a narrowly discoidal evolute shell with concave sides, a narrowly rounded rim (venter) that bears several longitudinal...

of a uterine anomaly or variation where the uterine cavity displays a concave contour towards the fundus. Normally the uterine cavity is straight or...

Hollywood Sign to the northeast. The "bowl" refers to the shape of the concave meadow or dell, originally called Daisy Dell, into which the amphitheatre...

systems, aberrations can be minimized using combinations of convex and concave lenses, or by using aspheric lenses or aplanatic lenses. Lens systems with...

body that is compressed from side to side, convex above, and concave below. The base is concave, and the head presents a trochlear surface for articulation...

masa dough around the outside of a small mold, in the process creating a concave container resembling the boat of the same name, and then deep frying the...

ceilings and overcame the problems of applying linear perspective to the concave surfaces of domes in order to dissolve the architecture and create illusions...

combination of two curves that, as a result of a point of inflection from concave to convex or vice versa, have ends of the overall curve that point in opposite...

medial side, for the ulna. The carpal articular surface is triangular, concave, smooth, and divided by a slight antero-posterior ridge into two parts...

is an upstream-facing concave mark created when a piece of rock is removed. A crescentic fracture is a downstream-facing concave mark that also results...

edge. The broadest area is towards the base which is distinctly concave with concave grooves called "flutes" removed from one or, more commonly, both...

reciprocally concave and convex. It is found in the thumb, the thorax, the middle ear, and the heel. In a saddle joint, one bone surface is concave while another...

In ornithology, the facial disc is the concave collection of feathers on the face of some birds—most notably owls—surrounding the eyes. The concavity...

either a convex or concave shape, depending on the type of the liquid in the cylinder. Reading the liquid at the bottom part of a concave or the top part...

9 in) high, and 1 centimetre (0.39 in) to 2 centimetres (0.79 in) thick. Concave groves run vertically along the stems, between their four angles. This...

rounded fin, as opposed to goldfish (or C. gibelio) hybrids which have concave fins. The crucian carp is also the type species for the genus, which has...

similar to convex and concave functions. For this reason, an optimization problem which concerns optimizing a convex or concave function can also be described...

Frogs, an Ancient Greek comic drama by Aristophanes. The calls of the Concave-eared torrent frog (Amolops tormotus) are unusual in many aspects. The...

larger burial chamber, although there is little evidence to support this. A concave hollow in its upper face is known to have been worn over time by people...

_{j=1}^{d}|y_{j}-t|} . Each vector x {\displaystyle \mathbf {x} } can be plotted as a concave curve by connecting ( 0 , 0 ) , ( 1 , x 1 ↓ ) , ( 2 , x 1 ↓ + x 2 ↓ ) ...

thicker in front than in back. It is flattened or slightly concave above and below, concave behind, and deeply constricted in front and at the sides. The...

combatants during headhunting raids. They are distinctively shaped, with a concave or straight thin blade and an elongated backward spike on the upper corners...

system uses a Discus electric blower. The pedal keyboard is laid out in a concave-parallel design. In 1938, the tremulant was added to the swell division...

Niccolò Zucchi, in a later work, wrote that he had experimented with a concave bronze mirror in 1616, but said it did not produce a satisfactory image...

oval in shape, is slightly concave from side to side, and from before backward. The lateral, nearly circular, is concave from side to side, but slightly...

illustrates the expected utility model, in which U(c) is increasing in and concave in c. This shows that there are diminishing marginal returns associated...

near Milwaukee, Wisconsin. The abstract bronze sculpture includes sloping concave forms, vaguely female curves, and a rounded crown; it is installed on the...

English around 1690. The word was used in reference to a lens that is concave on one side and convex on the opposite side. The menisci of the knee are...

less than π radians (180°, two right angles); otherwise, it is called "concave" or "reflex". More generally, a vertex of a polyhedron or polytope is convex...

forms an arch which is convex proximally and concave distally. On the palmar side, the carpus is concave and forms the carpal tunnel, which is covered...

maker, or panini grill, is a cooking appliance that consists of two hinged concave, round or square, cast iron or aluminium plates on long handles. Its "clamshell"...

-roʊ-/ ) consonant is a coronal consonant where the tongue has a flat, concave, or even curled shape, and is articulated between the alveolar ridge and...

for vision correction, aspheric lenses can be categorized as convex or concave. Convex aspheric curvatures are used in many presbyopic vari-focal lenses...

outward. Barrel Pectus carinatum (convex but peaked) Pectus excavatum (concave, sunken) Respiratory examination Rosenow III, M.D., Edward. "What causes...

exist: convex lenses, which cause parallel light rays to converge, and concave lenses, which cause parallel light rays to diverge. The detailed prediction...

crest is convex superiorly but is sinuously curved, being concave inward in front, concave outward behind. It is sigmoid in shape, such that viewed from...

grip was simple with a small pommel, and the guard was curved with the concave side toward the point. There were typically several fullers along the wider...

plane, curvature or posterior occlusal plane. Arc of the curve, which is concave for mandibular teeth and convex for maxillary teeth are defined by a line...

segments. This is the source of the log-concave restriction: if a distribution is log-concave, then its logarithm is concave (shaped like an upside-down U), meaning...

rectilinear, or slightly concave line to the anterior margin, which is considerably narrowed; sinus of the hinge margin concave; posterior margin widely...

market when maximizing his utility level under the budget constraint. Concave preferences are the opposite of convex, where when A ∼ B {\displaystyle...

setting of log-concave measures, for which notions like isotropicity can be defined. Paouris's deviation inequality for isotropic log-concave measures and...

The iliac fossa is a large, smooth, concave surface on the internal surface of the ilium (part of the three fused bones making the hip bone). The iliac...

Subsequently, concave mihrabs became widespread across the Muslim world and were adopted as a standard feature of mosques. The oldest surviving concave mihrab...

continuous light bar is also used at the back, this time using a more concave design. An optional rear wing is also present, and so is a LiDAR system...

display device that, contrasting with the flat-panel display, features a concave viewing surface. Curved screen TVs were introduced to the consumer market...

butterflies representing flames. The Olmecs of the Preclassic period fashioned concave mirrors that were capable of lighting fires. Mirrors were also associated...

wedge-shaped cross-section (sabre-grind v. flat-grind), but may also have concave indentations or hollows, whose purpose is to reduce adhesion of the food...

and its curvature changes from anteriorly convex to posteriorly deeply concave; bounded above by the crest, below by the upper border of the acetabulum...

front, flat above and below, convex from side to side in front, deeply concave behind, and slightly constricted laterally and in front. They present,...

tensile stress, such as where a valley widens or bends. They are typically concave down and form an angle greater than 45° with the margin. Splaying crevasses...

the Vince Lombardi Trophy: a football in a kicking position on a three concave sided stand. The original trophy was produced by Tiffany & Co. in Newark...

Circus, Nottingham, England. Sky Mirror is a 6-metre-wide (20 ft)-wide concave dish of polished stainless steel weighing 10 tonnes (9.8 long tons) and...

making the chair light and easy to move. The fauteuil en cabriolet with a concave back and overstuffed seat cushion is a version of this. The seat of the...

discovered in 2008, when it was learned that the hotel's reflective surface and concave design can act as a parabolic reflector that creates conditions of extremely...

polygons (n-gons). A polygonal mesh may also be more generally composed of concave polygons, or even polygons with holes. The study of polygon meshes is a...

arch. On the underside is the "omphalos" (from Greek ὀμφαλός 'navel'), a concave chamber that warps and multiplies reflections. The sculpture builds upon...

incorporation of convex hub 16-inch alloy wheels replacing the previous concave versions. Thus the original flat spoke "star" wheels became a convex design...

physical models of the polyhedron seem to be flexible. Replacing the long concave-dihedral edges of Jessen's icosahedron by rigid struts, and the shorter...

The flag of Nepal is a concave pentagonal flag of red, white, and blue colour. It is used as both the state and civil flag of Nepal. It is the only non-rectangular...

elongating a rhombic dodecahedron – i.e., slicing it into two congruent concave polyhedra and covering the bases of a square prism. As a result, it has...

cyc in the U.S., Canada, and the UK) is a large curtain or wall, often concave, positioned at the back of the apse. It often encircles or partially encloses...

top surface of the piston is called its crown and is typically flat or concave. Some two-stroke engines use pistons with a deflector head. Pistons are...

or geometric shapes. Its "ball" shape in its packaging is a non-uniform concave rhombicuboctahedron. The snake was invented by Ernő Rubik, better known...

Amalfi cross) is a cross symbol, consisting of four "V" or arrowhead shaped concave quadrilaterals converging at a central vertex at right angles, two tips...

useful in determining an absolute vertical or perpendicular reference. Concave horizontal parabolic mirrors may be formed by rotating liquid mercury on...

whispering-gallery modes, are a type of wave that can travel around a concave surface. Originally discovered for sound waves in the whispering gallery...

radii of curvature. The positive sign '+' represents generatrix profile of concave bridge and negative '-', oblate. For the convex capillary bridges, the...

Because the values are in decreasing order, the cumulative function is a concave function. To take the example below, in order to lower the amount of late...

example, the famous Buck 110 hunting knife has a "hollow ground" blade, with concave blade faces (which aid in slicing through materials), but the cutting edge...

named after Hirofumi Uzawa and was originally introduced in the context of concave programming. We consider a saddle point problem of the form ( A B B ∗ )...

eyes and a disc shaped roughly like a lily pad (the snout is slightly concave). It is brownish above with a dark vermiculated or reticulated pattern...

posterior end of this spermaceti complex is the frontal sac, which covers the concave surface of the cranium. The posterior wall of the frontal sac is covered...

shift, and OPTICS. This metric is particularly suited for identifying concave and nested clusters, where traditional metrics such as the Silhouette coefficient...

its perimeter. Other circular triangles can have a mixture of convex and concave circular arc edges. Three given angles θ 1 {\displaystyle \theta _{1}}...

bottom of the board, termed concaves. These concaves have different uses and vary among different types of surfboards. Most concaves on the modern shortboard...

plots generated using 10,000 simulated points. The left plot, titled 'Concave Line with Log-Normal Noise', displays a scatter plot of the observed data...

China. It is a troglomorphic fish whose eyes have degenerated into shallow concave pits. It found in a subterranean river 400 m (1,300 ft) underground in...

Illustrated Reference. p. 66. Monnier, Franck (25 June 2022). "The so-called concave faces of the Great Pyramid: Facts and cognitive bias". Interdisciplinary...

wages. The Brownie was a basic cardboard box camera with a simple convex-concave lens that took 2+1⁄4-inch square pictures on No. 117 roll film. It was...

Euclid's proof only applied to convex polygons, the theorem also applies to concave polygons and even to similar figures that have curved boundaries (but still...

0, the stationary point at x is concave down; a maximal extremum. If f″(x) > 0, the stationary point at x is concave up; a minimal extremum. If f″(x)...

carpal articular facet is concave behind, flat in front, and articulates with the capitate. On the radial side is a smooth, concave facet for articulation...

they would have originally belonged to important people. The targe is a concave shield fitted with enarmes on the inside, one adjustable by a buckle, to...

with forewings with a humped costal edge, hook-shaped apex, concave outer edge, concave inner edge and hindwings with a tail. There is sexual dimorphism...

photon energy than the concave side does, and subsequently the gas molecules receive more heat from the convex side than from the concave side. At rough vacuum...

Geodesic Length Two-dimensional Surface Plane Area Polygon Simple Convex Concave Star Regular Reuleaux Triangle Centers Altitude Hypotenuse Pythagorean...

vertical horopter. At short fixation distances, the empirical horopter is a concave parabola flatter that a circle. At some given distance, called the abathic...

arch also suggest a normal temporal fossa. The skull also includes a very concave glenoid cavity, which is limited by a string rim. The upper teeth are longer...

Sea are delineated as follows: The Gulf of Aden Front (GAF): Forming a concave semicircle running from Burua in Somalia (11°28′45.519″N 49°41′23.6934″E...

cranial pressure can develop, leading to mental deficiency. A flat or concave face may develop as a result of deficient growth in the mid-facial bones...

from Latin alveolus 'little cavity') is a general anatomical term for a concave cavity or pit. Pulmonary alveolus, an air sac in the lungs Alveolar cell...

telescope invented by the English scientist Sir Isaac Newton, using a concave primary mirror and a flat diagonal secondary mirror. Newton's first reflecting...

accelerate once set in motion, additionally convex slopes are less stable than concave slopes because of the disparity between the tensile strength of snow layers...

which is termed a target or land. A pogo target consists of a flat or concave metal surface, which unlike the pins, has no moving parts. Targets may...

differences, such as instruments whose dome on the top was replaced by a concave tone field, or with triangular rather than circular sound fields, were...

the scapula (the shoulder blade) is smaller than the infraspinous fossa, concave, smooth, and broader at its vertebral than at its humeral end. Its medial...

solution curve is concave up, its tangent line will underestimate the vertical coordinate of the next point and vice versa for a concave down solution. The...

expression for the area of a general quadrilateral. It works on both convex and concave quadrilaterals, whether it is cyclic or not. The German mathematician Carl...

after convex transformation (or equivalently, the opposite inequality for concave transformations). Jensen's inequality generalizes the statement that the...

clipper may be either concave or convex. Nail clippers with convex clipping ends are intended for trimming toenails, while concave clipping ends are for...

naturalistic and spiky. The flat abacus at the top of the capital has a concave curve on each face, and usually a single flower ("rosette") projecting...

apex of an acuminate leaf. acuminate Tapering gradually to a point, with concave sides approaching the point. Contrast acute and mucronate. See also Leaf...

egg-and-star, refers to alternating egg and V-shapes enriching the surface of the concave ovolo in many early cases. The description of ovolo as the fundamental...

Scyphate is a term frequently used in numismatics to refer to the concave or "cup-shaped" Byzantine coins of the 11th–14th centuries. This usage emerged...

Geodesic Length Two-dimensional Surface Plane Area Polygon Simple Convex Concave Star Regular Reuleaux Triangle Centers Altitude Hypotenuse Pythagorean...

on a corner. Fillet geometry, when on an interior corner is a line of concave function, whereas a fillet on an exterior corner is a line of convex function...

inferior surface of each orbital plate of the frontal bone. It is smooth and concave, and presents, laterally, underneath the zygomatic process, a shallow depression...

designers were Paul Bracq and Béla Barényi, who created its patented, slightly concave hardtop, which inspired the "Pagoda" nickname. All models were equipped...

the front, one negative flint glass element at the center and a negative concave flint glass element cemented with a positive convex crown glass element...

posterior concave branch. Thus the costa and subcosta are regarded as convex and concave branches of a primary first vein, Rs is the concave branch of...

follows: "a fracture with smooth, curved surfaces, typically slightly concave, showing concentric undulations resembling the lines of growth of a shell"...

Jakob Sundevall in 1833. They are yellow or brownish in coloration, with a concave carapace that narrows gradually towards the head. As of March 2023[update]...

credit for the innovation. A Mode 2 tool is a biface consisting of two concave surfaces intersecting to form a cutting edge all the way around, except...

majorization inequality, is a theorem in elementary algebra for convex and concave real-valued functions, defined on an interval of the real line. It generalizes...

concave utility functions that are positively skewed (that is, have a nonnegative third derivative throughout). the set of nondecreasing, concave utility...

against the other. Fire tongs style: A pair of spoons is held tight with concave sides facing out and with index finger between their handles to space them...

that rays appear to be diverging from. Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away...

wall. The rock is gneiss, formed into a broken rock wall of huge corners, concave roofs, and crack systems, topped with a series of spires and pinnacles...

belonging to the family Bryaceae. Its green leaves are ovate and strongly concave. It is native to Northern Hemisphere. "Ptychostomum knowltonii (Barnes)...

The inferior or orbital surface of the frontal lobe is concave, and rests on the orbital plate of the frontal bone. It is divided into four orbital gyri...

removes the desired amount of material from the inside of the lens. The concave (inner) surface of the lens is then polished with some fine abrasive paste...

winds blowing across a level surface and are crescent-shaped with the concave side away from the wind. When there are two directions from which winds...

also known as a concave slope or waning slope, is a very gently sloping (0.5°–7°) inclined bedrock surface. It is typically a concave surface sloping...

dodecahedron is a star polyhedron that looks like a dodecahedron with concave pentagonal pyramids in place of its faces. Its exterior surface represents...

is highly predictive of a myocardial infarction (Pardee sign) while a concave ST elevation is less suggestive and can be found in other non-ischaemic...

in their respective dual positions. An octagonal star can be seen as a concave hexadecagon, with internal intersecting geometry erased. It can also be...

also be a similarly shaped landform arising from fluvial erosion. The concave shape of a glacial cirque is open on the downhill side, while the cupped...

shortboard. The shape of the board is also important: the skateboard must be concaved to perform tricks. Skateboarding, as it exists today, was likely born sometime...

have the last standing spinning top. The game takes place on a circular concave arena with four spinning top launch positions. Players wind a string (attached...

newer models, but a portion at the rear of the slide was instead slightly concave to aid grasping. The pistol also had slightly different markings, with...

permanent premolars are long and low with a profile that is serrated, concave, or horizontal at the cutting edge. An acutely pointed incisor extends...

regions where the land is bending and folding. If the structure above the concave-down fold (arch) is a non-porous rock or aquitard, such as shale, it is...

originating in the Moro people of Mindanao in the Philippines. It has an unusual concave shape on the blade's top part, which is very similar to the bangkung in...

trifasciata, leaves become narrower and thickened towards the bottom, forming a concave channel at the base of the leaves. "Dracaena zeylanica (L.) Mabb". Plants...

crosses Piazza Carignano, well known mainly for the undulating "concave – convex-concave" Baroque façade of Palazzo Carignano. This building used to host...

electronics work. Tips may be straight or have a bend. Concave or wicking tips with a chisel face with a concave well in the flat face to hold a small amount of...

Geodesic Length Two-dimensional Surface Plane Area Polygon Simple Convex Concave Star Regular Reuleaux Triangle Centers Altitude Hypotenuse Pythagorean...

It is useful for clearing undergrowth and unwanted hedgerows. Both the concave and convex edges may be sharpened edges, but spear-points and back-hooks...

eigenvalues in I . {\displaystyle I.} A function f {\displaystyle f} is operator concave if − f {\displaystyle -f} is operator convex; that is, the inequality above...

on the surface, such as rounded edges, hills or valleys, or convex and concave surfaces. Both the optical flat and the surface to be tested need to be...

Recurve bow, a type of bow used in archery A knife blade shape with a concave portion, often exemplified by a kukri Reverse curve S Curve (disambiguation)...

the wear on the center contact patch, and underinflation will cause a concave tread, resulting in less center contact, though the overall contact patch...

GitHub. Retrieved 2024-03-30. Wilber, Robert (1988-09-01). "The concave least-weight subsequence problem revisited". Journal of Algorithms. 9 (3):...

circularly shaped. There was also a variation called the concave buddle, which had a concave bottom. The pit, often constructed from stone, cement, or...

green, marbled with white and rich brown. The 6-7 whorls are flattened or concave above, rounded and bearing two nodose keels below, and a stronger nodose...

named. High-resolution imaging in 2026 revealed that Nysa has a highly concave and irregular shape, with three apparent lobes carved by several massive...

deviate. Schlieren were first observed by Robert Hooke in 1665 using a large concave lens and two candles. One candle served as a light source. The warm air...

clocks, the manufacture of distilled spirits, and the use of the astrolabe. Concave spectacles were invented around 1286 by an unknown Italian artisan, probably...

polygamma functions. This function is strictly increasing and strictly concave on ( 0 , ∞ ) {\displaystyle (0,\infty )} , and it asymptotically behaves...

monotone function in the scalar case. A function f is called operator concave if and only if τ f ( A ) + ( 1 − τ ) f ( H ) ⪯ f ( τ A + ( 1 − τ ) H )...

(sigmoid cavity) of the radius; it is in the distal radius, and is narrow, concave, smooth, and articulates with the head of the ulna forming the distal radioulnar...

Geodesic Length Two-dimensional Surface Plane Area Polygon Simple Convex Concave Star Regular Reuleaux Triangle Centers Altitude Hypotenuse Pythagorean...

convex side and compression forces on the concave side. At the apical vertebra, average bone density for the concave cortical bone is higher than for the convex...

-\sigma } and x = μ + σ . {\textstyle x=\mu +\sigma .} Its density is log-concave. Its density is infinitely differentiable, indeed supersmooth of order...

appears round, but is slightly longer than broad. The nose is slightly concave when viewed in profile. The whisker pads are clearly pronounced, with a...

made for the developing requirements of bonsai styling. This included the concave cutter, a branch cutter designed to leave a shallow indentation on the...

base with a convex rim known as the bedstone (or nether millstone) and a concave-rimmed runner stone that rotates. The movement of the runner on top of...

Guitar Construction, that truss rods are intended primarily to remedy concave bowing of the neck, but cannot correct a neck with "back bow" or one that...

removed from its socket. The illusion, which involved another light bulb and concave mirrors, inspired Thomas. In response to her curiosity, she began her researching...

transfer images from etched plates onto 3D objects. The pad conforms to concave or irregular pottery shapes with ease. It remains the industry standard...

negative if the surface is concave. The signs are reversed for the back surface of the lens: R2 is positive if the surface is concave, and negative if it is...

opening and closing shutters mounted in front of the lamp, or by tilting a concave mirror. They continue to be used to the present day on naval vessels and...

= 0. {\displaystyle F_{i\rightarrow i}=0.} For concave surfaces, this doesn't apply, and so for concave surfaces F i → i > 0. {\displaystyle F_{i\rightarrow...

largest Roman dome. Segmented domes, made of radially concave wedges or of alternating concave and flat wedges, appear under Hadrian in the 2nd century...

Geodesic Length Two-dimensional Surface Plane Area Polygon Simple Convex Concave Star Regular Reuleaux Triangle Centers Altitude Hypotenuse Pythagorean...

with a smooth, raised inner margin surrounded by an expanded, slightly concave area, which is widest above and on the parietal wall, with its outer edge...

a die with its front-side showing five dots, a crescent moon with its concave side facing to the right and sometimes with a small five-pointed star to...

temperatures. The liquid hydrogen tank consists of a long cylinder with a concave modified ellipsoidal bulkhead forward and a convex modified ellipsoidal...

lateral lobes and a generally large tubular ventro-marginal siphuncle with concave segments and irregularly spaced diaphragms. Connecting rings are thick...

to fill-space, while the angle of the roof is free, including allowing concave forms. If the roof has zero angle, the geometry becomes a cube or rectangular...

s-shaped cyma molding (either cyma recta or cyma reversa), combining a concave cavetto with a convex ovolo. It is characteristic of Ionic columns and...

not flat: one side of the bead is slightly convex; the other is concave. The concave side of the bead clearly shows the spiral form of the interior of...

exposed to high pressures that causes it to fracture, usually into large concave pieces. In mud logging, watching for this type of shale is one method of...

the track, whereas with an alpine slide the cart simply runs on a smooth concave track usually made of metal, concrete or fiberglass. Both of these are...

base. Basal half of the palps are brown or blackish. Males are a little concave in theirs dorsal centre. In the abdomen only segments 7 and 8 are hairy...

diverging lens (one that is thicker at the edges than the middle) or a concave mirror forms a virtual image. Such an image is reduced in size when compared...

of the water assumes a concave shape as it acquires the motion of the bucket spinning relative to the experimenter. This concave shape shows that the water...

body lines with a squared-off roofline with a concave rear window, along with less chrome. The concave rear window was replicated on Tempest/LeMans four-door...

posterior ligament of the elbow-joint. Its anterior surface is smooth, concave, and forms the upper part of the semilunar notch. Its borders present continuations...

become concave. If the bucket is stopped, the water will continue to spin, and while the spin continues, the surface will remain concave. The concave surface...

corresponds to higher pass-through, concave demand is characterized by lower pass-through value. The pass-through for concave demand is always below 1.0 if...

preserved. As in Giraffatitan, this vertebra was slightly amphicoelous (concave on both ends), lacked openings on the sides, and had a short neural spine...

Schwarzschild telescope is a reflecting telescope with two aspherical concave mirrors. It was developed by Karl Schwarzschild and named after him. Due...

of the likely use of concave mirrors in certain Renaissance paintings, particularly the Lotto painting. Experiments with a concave mirror (which technically...

had an improved zoetrope constructed. Instead of slits, his version used concave lenses with a focal length equaling the diameter of the cylinder. The virtual...

bruising of the flesh. Nonstick properties: The back face (urasuki) is concave to easily detach the blade from the substance being cut, and the front...

weight and serve as shovels when digging for food under snow. These large concave hooves offer stable support on wet, soggy ground and on crusty snow. The...

themselves, which undulate and by concave and convex elements, including an oval tower and balcony inserted into a concave traverse. The interior was equally...

characterised by its long prehensile trunk with two finger-like processes; a concave back; large ears which help reduce body heat; and sturdy tusks that are...

the skull or bones of ancestors. There is a characteristic heart-shaped, concave face and large bulbous forehead. The heads are very abstract, focus on...

two concave mirrors: the primary mirror (a concave paraboloid) collects the light and brings it to a focus before the secondary mirror (a concave ellipsoid)...

the designation "disorder cluster"). Likewise fragility is defined as a concave sensitivity to stressors, leading to a negative sensitivity to increase...

centrodorsal, is devoid of radial pits or coelomic impressions, is smooth, concave, and is shaped irregularly at edges. It can be distinguished from other...

use of second derivatives is to determine whether a function is concave up or concave down at a point. It does not, however, provide information about...

food. Similar cookware is called a budare in Venezuela. Some comals are concave and made of barro (clay). These are still made and used by the indigenous...

single-edged blade that pitched forward towards the point, the edge being concave on the part of the sword nearest the hilt, but swelling to convexity towards...

relationship to each other, hence the design of the Mapparium—a mirror-image, concave reversal of the Earth, viewed from within. This is the only configuration...

of the neural arch. The anterior facet of the atlas centrum was highly concave for the articulation of the occipital condyle of the skull. The neural...

excessively, so Carlo Rainaldi eliminated the narthex idea and substituted a concave façade so that the steps would not be so intrusive. The idea of the twin...

this gives the inequality. Jensen's inequality states that the value of a concave function of an arithmetic mean is greater than or equal to the arithmetic...

triangular in shape, with concave margins unlike the straighter ones seen in Uktendactylus and Nicorhynchus, and more concave than in Coloborhynchus. Each...

portion of the postorbital being vertically oriented and possessing a concave lateral surface, its skull roof possessing a triangular exposure of the...

masked, leaving a 4-meter off-axis section of a 12-meter diameter, f/0.67 concave parabola. It was cast from Zerodur by Schott and polished at the Richard...

Circle spectrographs in which the single holographically ruled aspheric concave diffraction grating simultaneously focuses and diffracts the incoming light...

functionality. On 3 January 1922, Hiram A. Farrand patented his concave-convex tape. The concave nature of his design allowed the tape to stay rigid, even when...

but exhibit a weak "concave-up" geometry. These two features—the thin, cross-stratified bedding combined with the possible concave geometry—suggest small...

an off-axis concave parabolic concave hyperbolic[clarification needed] Cassegrain reflector, while the horizontal axis operates as a concave convex[clarification...

forewings with a humped costal edge, pointed apex, concave outer edge near the apex, hook-like inner angle, concave inner edge and hind wings each with a tail...

tibiocalcaneal ligament, and medial talocalcaneal ligament. This eminence is concave above, and articulates with the middle calcaneal articular surface of the...

entirely concave from below is y = y 0 + r 2 − ( x − x 0 ) 2 . {\displaystyle y=y_{0}+{\sqrt {r^{2}-(x-x_{0})^{2}}}.} If it is entirely concave from above...

Steve Zuloff and Barry Benjamin. The Micro-theater is composed of a big concave mirror that lies underneath the stage. This holographic mirror-like optical...

zygomatic arches narrower. Its jaws are also much narrower, and the forehead concave. Its canine teeth are also much longer than those of hill foxes. The Tibetan...

angular apex, almost straight outer edge, hook-like inner angle and very concave inner edge. Each hindwing bears a tail. The upper part is navy blue, almost...

{\displaystyle {\color {royalblue}^{\mathsf {o}}},} making convex or concave polygons respectively. A star 2 n {\displaystyle {\color {royalblue}{\mathbf...

a mechanical lift system, a projected presentation on an 80 ft (24 m) concave 180-degree dome screen, and artificial scents and wind to simulate a hang...

example of what geomorphologists call a "flared slope". A flared slope is a concave-upward or -inward bedrock surface that is typically found around the base...

(usually of the hand) which have lost their convexity, becoming flat or even concave in shape. In early stages nails may be brittle and chip or break easily...

"second stopping place" was in the vicinity of the Wayaanag-gakaabikaa (Concave Waterfalls, i.e., Niagara Falls). At their "third stopping place", near...

a concave plastron in the male. The longer claws are used in a courtship routine in which the male faces the female and fans her face. The concave plastron...

Look up innie in Wiktionary, the free dictionary. An innie is a concave navel. Innie may also refer to: Innie, a colloquial name for a kind of vulva Innie...

ten whorls; the upper whorls are eroded, while the remaining whorls are concave above and somewhat convex in their middle part. They are sculptured with...

pterygoid pit or the pterygoid depression) is located on the mandible. It is a concave surface on the medial side of the neck of the condyloid process of the...

and continuous with the lateral surface. The inferior surface is oval, concave from side to side, convex from before backward, so as to form a saddle-shaped...

the two noted by Unchurch et al. include caudal vertebrae with strongly concave front faces (procoely), although the furthest vertebrae are not procoelous...

directed against the opposite bank of the river, which will erode into a more concave shape to accommodate the flow. The bank will still block the flow, causing...

side's front line bulged towards the opposition, a salient was formed. The concave trench line facing the salient was called a "re-entrant." Large salients...

Sometimes the mirrors may be distorted because of different curves, convex, or concave in the glass to give the participants unusual and confusing reflections...

encrusted by Spirorbis worm tubes. In adulthood, the dorsal valve has a concave rim up to 1mm wide. The outer edge is extremely thin, about 50 μm, and...

least one of the blades will be curved: a convex upper blade with either a concave or straight lower one. Some bypass designs have only one blade, the lower...

to have weighed 10.4 t (10.2 long tons; 11.5 short tons). Its back is concave-shaped, while the back of the African forest elephant is nearly straight...

or hypaspists, was probably armed in the hoplite manner, with a large concave shield (Aspis) and a spear (Dory), in addition to spolas or linothorax...

within the body. It has thus been speculated that the fuller, an elongated concave depression in a metal blade, functions to let blood out of the body in...

angled obliquely, downward and forward. It is slightly convex in front and concave behind; broad above, shaped like a "T", becoming narrowed at the point...

{\displaystyle \mathbb {R} ^{n}} and let g {\displaystyle g} be a proper concave function on R n {\displaystyle \mathbb {R} ^{n}} . Then, if regularity...

margined on its anterior side. The posterior portion of each whorl is concave in outline. All parts of the whorls are covered with large, rounded spiral...

which forms at a concave mirror. If the rays of light coming from a farther light source reflect to any point on axis of the concave mirror, they form...

Geodesic Length Two-dimensional Surface Plane Area Polygon Simple Convex Concave Star Regular Reuleaux Triangle Centers Altitude Hypotenuse Pythagorean...

extending the south-west jetty out for nearly 0.5 miles (0.80 km) with a curve concave towards the channel the outlet has not only been protected to some extent...

phenomenon. Craters in stereo vision, such as our eyes, normally appear concave. However, in monocular presentations, such as photographs, the elimination...

the subterminal line simple, brown without any shade before, slightly concave outwards; the cell lunule obscurer; hindwing paler grey, the subterminal...

metal liner, usually a plate made of stamped or machined copper, with a concave lens or dish shape, pointed inward. The plate is aimed at the target. When...

beetles are laterally curved. The anterior (front) margin of the pronotum is concave and has a parallel row of tubercles, while the posterior (rear) margin...

In front of the tooth row the upper jaw rim is over its total length concave in side view. The skull opening, the antorbital fenestra, is twice as long...

physical characteristic making them different: they have a convex rather than concave philtrum.[citation needed] The Orang bunian, "elves" or "hidden people"...

nine elongated vertebrae, which were procoelous, meaning that they were concave at the front. All of them were compressed dorsoventrally (top to bottom)...

cyrtocone, i.e. section higher than wide and curved with the ventral side concave, with a subtriangular cross section. The siphuncle is ventral, marginal...

out the theoretical basis of double-convex converging lenses and double-concave diverging lenses—and how they are combined to produce a Galilean telescope—as...

The blossoms have 4 petals. The 7–12 mm diameter fruits are ovoid with a concave tip and a wrinkled texture. The fruits turn purplish upon ripening. In...

Regiment's ceremonial uniform. Its distinguishing feature was the dished or concave top. This style of shako was worn by the Black Brunswickers alongside shakos...

The siphonal canal is short, and wide. The operculum is ovate, somewhat concave, and with an apical nucleus. This marine species occurs off Vancouver Island...

broad, steep, and straight, while the whorls are slightly contracted and concave below the angle. The suture is wavy and not particularly impressed. The...

The umbilicus is sunken on both sides, giving a concave appearance. The left side is more concave than the right. There are between 2 and 3 whorls....

curves. This inward curve is known as a lordotic curve. The thoracic curve, concave forward, begins at the middle of the second and ends at the middle of the...

conclusions. An agent is risk-averse if and only if the utility function is concave. For instance u(0) could be 0, u(100) might be 10, u(40) might be 5, and...

creeping sole of moderate width. The anterior end is rounded and slightly concave, bordered by glandular and sensory tracts, and has two large eyes. The...

their front and rear faces are concave, particularly the front face which is quite strongly concave. While strongly concave front faces are common among...

appeared in Loddiges' 1823 list, but Loudon's brief description (1838) of concave- and hooded-leaved elms was insufficient for later botanists to distinguish...

of golok in Lampung, Indonesia. The blade's edge is convex. The back is concave and curves towards the edge at the point. The centre of gravity lies near...

or altering the colors, and can save and print the images. Convex and Concave is a game in which players are presented with perspective puzzles., where...

immediately implies the analogue minimum principle: Any function that is concave and continuous, and defined on a set that is convex and compact, attains...

are conical in shape with a narrow rounded apex at the top, and a broad concave base that rests on the convex surface of the diaphragm. The apex of the...

in the "long-legged" letter-signs... the consistent use of a Waw with a concave top, [and an] x-shaped Taw." The oldest inscriptions in Paleo-Hebrew script...

have a humped costal edge, angular apex, hook-like inner angle, and very concave inner edge. Each hindwing bears a tail. The upper part of the male is very...

pyxides include the Type II: Low Concave-sided pyxis dated around the 5th and 4th centuries BC and the Type III: High Concave-sided pyxis dated ca. late 7th...

with parallel concave grooves topped by a capital decorated with acanthus leaves, that flared from the column to meet an abacus with concave sides at the...

real laser the crystal is finite. The cavity on both sides features a concave mirror and then a relative long path to a flat mirror. The continuous-wave...

ranging in colour from colourless to reddish-brown. The disc is either concave or flat. The epithecium is colourless to reddish-brown and does not react...

Music by Biffy Clyro. CD (BBQ374CD) "Eradicate the Doubt" – 4:26 "Convex, Concave" (live at The Mean Fiddler, London, England, 14 June 2003) – 4:22 "57"...

and dark spots. The whorls are uniquely crowned by a series of short, concave spines that give the shell a rugged, defensive profile. The apex is thick...

ensured that the surfaces become flat. Using two surfaces would result in a concave surface and a convex surface. Eventually a point is reached when many points...

The componentwise minimum of two nondecreasing concave integer sequences is also nondecreasing and concave. Therefore, for any two partitions of n, p and...

removing plants, sod cutting, and splitting perennials. The blade is made of concave-shaped carbon or stainless steel, making it ideal for digging and prying...

of Huaying Mountain). The mountain itself is a huge anticline with two concaves on the top, and it is also a part of the basin and range province of eastern...

linkage may be classified into three types: convex, concave, and crossing. In the convex and concave cases no two links cross over each other. In the crossing...

The harmonic and geometric means are concave symmetric functions of their arguments, and hence Schur-concave, while the arithmetic mean is a linear...

serpentine facade constructed towards the end of Borromini's life. The concave-convex facade of the church undulates in a non-classic way. Tall Corinthian...

early refracting telescopes consisted of a convex objective lens and a concave eyepiece. Galileo improved on this design the following year and applied...

nontraditional machining processes. Complex concave curvature components can be produced easily by using concave tools. Tool wear is zero, same tool can be...

Geodesic Length Two-dimensional Surface Plane Area Polygon Simple Convex Concave Star Regular Reuleaux Triangle Centers Altitude Hypotenuse Pythagorean...

travels parallel to the axis of symmetry of a parabola and strikes its concave side is reflected to its focus, regardless of where on the parabola the...

rounded spire whorls. The body whorl is weakly shouldered and slightly concave between the suture and shoulder. The columella features three strong plaits...

shaft of the column. The capital may be convex, as in the Doric order; concave, as in the inverted bell of the Corinthian order; or scrolling out, as...

A disk harrow is a harrow whose cutting edges are a row of concave metal discs, which may be scalloped or set at an oblique angle. It is an agricultural...

on the coast of Gulf of Papua. The Gulf region is aptly named for its concave coastline with large deltas. The Gulf area is a riparian region where many...

35 mm photographic slides: the slide projector. The magic lantern used a concave mirror behind a light source to direct the light through a small rectangular...

reflecting, surface and it lies in front of the reflecting surface in case of a concave mirror. Curvature Differential geometry of curves Hilbert, David; Cohn-Vossen...

include a weakly developed coronoid crest, a shallow masseteric fossa, and a concave dorsal margin of the dentary. It also lacks a labial mandibular foramen...

with two 8 mm wide arched lines, in the shape of a circular arc with the concave side facing inward,with a chord length of 90 millimeters. (5) For all other...

species in a separate genus Hydnostachyon, which he described as having a concave (spoon-like) spathe Spatha foliacea persistens cochleariformis, from which...

designs by Gagliardi. It rises above the avenue level of the park. The concave facade is rich in projecting columns, doric at the base and ionic in the...

replaced by a horizontally slatted grille (with a matching centerpiece); concave taillamp lenses replaced the previous convex design. The hidden headlamps...

in its abdomen and flaring out its ribs to turn its body into a "pseudo concave wing", all the while making a continual serpentine motion of lateral undulation...

Paranacaiman is noted for the fact that the edge at the back of the skull is concave to a point that it's almost V-shaped. This already distinguishes it from...

with a winding course flows. Each of these spurs extends laterally into a concave bend of the river such that when viewed either upstream or from overhead...

on each issue. Fain, Goel and Munagala assume that agents have additive concave utility functions, which represent convex preferences over bundles. In...

multipurpose project in Tokyo’s Roppongi neighbourhood. The building’s concave glass exterior facing Hibiya Park produces noticeable solar glare onto...

the hosohedra) have no flat-faced analogue. If faces are allowed to be concave as well as convex, adjacent faces may be made to meet together with no...

legs. The jaws are divided into internal and external mandibles and their concave surface bears fine denticles. They move backward and forward in a longitudinal...

Samrat Yantra (a large sundial for calculating time), Jay Prakash Yantra (2 concave hemispherical structures, used to ascertain the position of Sun and other...

Ceiling with a large concave curve at the wall-to-ceiling transition...

pedalboards, of both concave/radiating and concave/parallel varieties). AGO-spec.: concave/radiating BDO-spec.: concave/parallel BDO-spec.: concave/radiating 30-note...

head of the condyle translates down the articular eminence. Due to its concave shape, sometimes the articular disc is described as having an anterior...

calf. The cow was spindle-shaped, with a triangular dorsal fin with a concave trailing edge set about two-thirds the way back. It was dark gray or black...

structures at the sides of the vertebrae, called exapophyses, and the concave fronts may possess a midline prong, the hypapophysis. Pterosaur necks were...

mathematical shapes. For a broader scope, see list of shapes. Angle Balbis Concave polygon Constructible polygon Convex polygon Cyclic polygon Equiangular...

Crossed hexagon A concave hexagon A self-intersecting hexagon (star polygon) Extended Central {6} in {12} A skew hexagon, within cube Dissected {6} projection...

characteristic of favus. Consists of a crust-like yellow lesion (sulphur cap) Has a concave-convex surface with its convexity to the scalp making for itself an erosion...

standard deviation (the square root of variance). The square root is a concave function and thus introduces negative bias (by Jensen's inequality), which...

above the suture. The upper whorls are violet. The sides of the spire are concave towards the top, and convex towards the periphery. The shell contains 9...

The basal margin is arcuate and plicate. The columella is subangular, concave, strongly truncate at base, with a short callus over the umbilicus. This...

limbs are gracile and relatively straight. Additionally, the anteriorly concave tail vertebrae are relatively long and narrow. No osteoderms were identified...

different amounts of dispersion. Typically, one element is a negative (concave) element made out of flint glass such as F2, which has relatively high...

for example, a concave function of a state variable over a horizon from time zero (the present) to a terminal time T, or a concave function of a state...

impressed lines. The aperture is rhomboid-rounded. The columellar margin is concave, thickened, below a little expanded, edentulous. Rosenberg, G. (2012)....

covered in articular cartilage. The palmar surface of the scaphoid is concave, and forming a distal tubercle, giving attachment to the transverse carpal...

Scallops have more complex eyes with a lens, a two-layered retina, and a concave mirror. All bivalves have light-sensitive cells that can detect a shadow...

puts forth the idea that the Earth and universe are contained within a concave sphere, or 'cell'. The Koreshans even conducted several experiments, similar...

mounting and copulation can be difficult. In many species, males have a concave plastron that interlocks with the female's carapace. In species like the...

with a humped costal edge, pointed apex, concave outer edge near the apex, hooked inner angle and very concave inner edge. Each hindwing bears a large...

the deltoid muscle; forward and lateralward below, where it is slightly concave from above downward, and gives origin to part of the brachialis. About...

to match the redesigned console; the X and Y buttons are lavender with concave faces, and the A and B buttons are purple with convex faces. Several later...

spherical projection extending from the back side which attaches to a concave socket on the front end of the preceding vertebra. The femora slightly...

times are concave.[clarification needed] Brown conjectured the converse, that DFR is also necessary for the inter-renewal times to be concave, however...

Bjornson and the simple bendy clip which works by snapping the clip from a concave to convex position, springing it into a locked position, or opening it...

weakly opisthocoelous, i.e. with a convex front of the vertebral body and a concave rear. The vertebral bodies had single pleurocoels, pneumatic depressions...

structure measuring 380 by 160 ft (116 by 49 m), with concave walls to the west and east, as well as a concave roof with a dome. The building contains a lobby...

may have bristles at their tips. According to C. Michael Hogan, the thin concave indusia are quite closely spaced and almost entirely cover the sporangia...

similar instrument called the crotalum. The instrument consists of a pair of concave shells joined on one edge by a string. They are held in the hand and used...

approximately 25 m (82 ft) in height and cascades from an oval-shaped concave rock outcrop. During the local wet season, the waterfall turns into what...

"While The Cats Away..." – 3:19 "What'll It Be" – 2:16 "Pizza" – 1:49 "Concave" – 1:07 "Frozen Food" – 1:09 "The Osmonds" – 4:24 "Hot Mama" – 2:18 "Turn-On...

is 7–15 centimetres (3–6 inches) wide, convex to applanate, sometimes concave, and white, covered with white, conical to pyramid volval remnants 1–3...

telescope. The spherical secondary can be fringe tested against a spherical concave surface or tested from behind. This is markedly an advantage over the hyperbolic...

six different lengths of pull. The shoulder pad can be either convex or concave and the stock features a storage space for maintenance accessories, spare...

direction behind, concave in front. It presents three surfaces: medial, lateral, and dorsal. The medial and lateral surfaces are concave, for the attachment...

name in North America. The RT 490 uses a unique Rotating Concave Rotary design where the concave rotates counter to the rotor, reducing dead spots and increasing...

narrows slightly from the hilt to the tip. The cutting edge is on the concave side of the blade. The blades are often made from pattern welded steel...

comprise the streets, while the remaining four sides are nearly symmetric, concave Baroque facades, each with four stories with three full size statues in...

64 stories of the tower, and sits among 118 Texas live oak trees. The concave portion of the circle, which faces north toward the tower, is fronted by...

includes works by Rudolf Belling, Barbara Hepworth, Rupprecht Geiger ("Concave rounded", 1973), Norbert Kricke and Joseph Beuys. Purchases for the Collection...

is usually refined and small, with small ears and either a straight or concave profile. The horses are close-coupled with a level topline and have a very...

hornless and tassels may be present. The profile may be straight or somewhat concave; the ears are erect and point upwards and forwards. The Saanen is the most...

convex or straight; from there to the caudal-fin base, it is slightly concave. From the snout tip to the pectoral-fin insertion, the ventral profile...

surface alongside a prominent longitudinal ridge. The inner surface is concave with very narrow ridges on the margins. These teeth seem to be fibrous...

decree of Queen Wilhelmina. The medal is an irregular bronze cross with concave ends on the arms. The obverse bears a central portrait of Queen Wilhelmina...

posterior part of the larynx. The posterior surface is triangular, smooth, concave, and gives attachment to the arytenoid muscle and transversus. The antero-lateral...

margin does not quite reach the tibiofibular joint. Above the joint’s free concave border is a large oval aperture for the passage of the anterior tibial...

rest of its extent is subcutaneous. Its inferior surface is smooth and concave. Its lateral border is thick and irregular, and presents three or four...

directional pad designs (either the traditional four-way design, or a concave disc-like design), and "hair trigger locks" for the triggers that allow...

come in many different sizes and shapes, they all use one convex and one concave piece of metal that press together to create indentations in the sheet...

(1969) distinguishes six types of inselbergs: buttes, conical hills, convex-concave hills, rock crest over regolith-covered slope, rock dome (sugarloaf) and...

from the Greek ἀμφί, amphi: "on both sides", and κοῖλος, koilos: "hollow, concave") is a genus of herbivorous sauropod dinosaur that lived approximately...

Pollio, who constructed the Marnas aqueduct, by Offilius Proculus. It has a concave façade. A part of the site, Basilica of St. John, was built in the 6th...

describe similar geomorphic features of non-glacial origin consisting of a concave depression with convergent slopes typically of 65 percent or greater forming...

attachment of ligaments. The bone is curved longitudinally, so as to be concave below, slightly convex above. The base articulates behind, by a triangular...

has a large siphuncle, located close to the ventral margin, composed of concave segments, especially in the young but which may be tubular in the adult...

only example of civic architecture making use of the undulating 'concave – convex – concave' rhythm established by Francesco Borromini in the church of San...

slightly concave cutting edge, while the back S-shape runs to the cutting edge at the site. with a slightly convex back, a slightly concave edge and a...

boomeranged-shaped furcula without a hypocleidium; proximal margin of humerus concave centrally; deltopectoral crest large and not perforated; minor metacarpal...

species. The eyes are lacking cornea, concave laterally, with the microfibrous microstructures on the concave surface. The telson lateral margins are...

the mosque in 698 CE and once again doubled the mosque's area. In 711 a concave prayer niche was added to replace the flat one. In 827 CE, it had seven...

fishes. In contrast to mammals such as humans, fish vertebrae are typically concave at both the anterior and posterior faces (amphicoelous). Ntagiopoulos,...

Sun exactly to scale, you would see that the Moon's orbit is everywhere concave toward the Sun. It is always "falling toward" the Sun. All the other satellites...

conical section to make the sides concave, to reduce the bullet mass, or convex, to increase it. B shows a concave sided SWC, typical of a lightweight...

valve. Many modifications followed, including the convexo-concave valve. The convexo-concave valve had defects in form of strut fractures. Therefore, the...

Buttress plates, or concave plates, are useful for fractures along concave surfaces. Due to the angle of the bone, the contour of the concave plate aligns with...

shape of the dorsal margin (compared to concave shape found in cave bear and U. deningeri and somewhat concave in U. arctos). Olecranon shape more closely...

obtusely angular at the shoulder, and the subsutural ramp is distinctly concave on all whorls, varying from narrow to moderately broad. The suture is distinct...

formed by erosion. Glen: typically a long valley bounded by gently sloped concave sides. Gulch: a deep V-shaped valley formed by erosion. Hollow: A term...

separated only by a shallow notch, and the presence of a subrectangular, concave, laterally-projecting caudal part of the postorbital suture, separated...