擬正多面體

擬正圖形
(3.3)2 (3.4)2 (3.5)2 (3.6)2 (3.7)2 (3.8)2 (3.∞)2
r{3,3} r{3,4} r{3,5} r{3,6} r{3,7} r{3,8} r{3,∞}
node 3 node_1 3 node  node 4 node_1 3 node  node 5 node_1 3 node  node 6 node_1 3 node  node 7 node_1 3 node  node 8 node_1 3 node  node infin node_1 3 node 
A quasiregular polyhedron or tiling has exactly two kinds of regular face, which alternate around each vertex. Their vertex figures are rectangles.

幾何學中,擬正多面體是一種半正多面體,并由兩種正多邊形面交錯環繞每一個頂點。具有邊可遞性質,因此比半正多面體更接近正多面體,僅差一個點可遞性質。只有兩種凸擬正多面體,分別為截半立方體和截半二十面體。他們的名稱,由開普勒給出,來自首次確認他們的所有的面都來自對偶對——正方體和正八面體,第二個則來自對偶對——正十二面體和正二十面體。

這些形式表示對一個正多面體及其對偶多面體可以給出一個垂直施萊夫利符號 或r{p,q}來代表它們同時包含正{p,q}和正{q,p}對偶的面。一個擬正多面體有此符號就會有一個頂點這樣的頂點圖:p.q.p.q (或 (p.q)2)。

參考文獻

外部連結

Read other articles:

خوبي (بالصينية: 湖北省)‏(بالصينية: 湖北省)‏     خريطة الموقع تقسيم إداري البلد الصين  [1][2] العاصمة ووهان  التقسيم الأعلى الصين (1 أكتوبر 1949–)  خصائص جغرافية إحداثيات 31°12′N 112°18′E / 31.2°N 112.3°E / 31.2; 112.3  [3] المساحة 185900 كيلومتر مربع[4]  ...

 

Esta página ou seção foi marcada para revisão devido a incoerências ou dados de confiabilidade duvidosa. Se tem algum conhecimento sobre o tema, por favor, verifique e melhore a coerência e o rigor deste artigo.Considere colocar uma explicação mais detalhada na discussão. Este artigo não cita fontes confiáveis. Ajude a inserir referências. Conteúdo não verificável pode ser removido.—Encontre fontes: ABW  • CAPES  • Google (N • L&...

 

Solutréen Zeitalter: mittleres Jungpaläolithikum Absolut: ca. 21 000–15 000 v. Chr. Ausdehnung Westeuropa, Zentraleuropa und Osteuropa Leitformen Blattspitzen, Lorbeerblattspitzen, Weidenblattspitzen und Kerbspitzen Das Solutréen (Aussprache [zolytreˈɛ̃ː]) ist eine archäologische Kultur des Jungpaläolithikums, die während des letzten Kältemaximums der Weichseleiszeit von etwa 22.000 bis 18.000 BP in Westeuropa verbreitet war. Der namengebende Fundort befindet sich bei Solutr...

Ця стаття не містить посилань на джерела. Ви можете допомогти поліпшити цю статтю, додавши посилання на надійні (авторитетні) джерела. Матеріал без джерел може бути піддано сумніву та вилучено. (січень 2018) Солчуртув. Солчур Координати 50°45′ пн. ш. 92°02′ сх. д.࿯...

 

  关于与「怪俠一枝梅 (2010年電視劇)」標題相近或相同的条目,請見「怪侠一枝梅」。 怪侠一枝梅The Vigilantes in Masks电视剧海报类型武侠剧 - 古装、动作、悬疑格式电视连续剧编剧巨门创作总导演李国立导演吴锦源、游达志、梁胜权助理导演郭春燕、程锦、周丹科主演霍建华、刘诗诗、马天宇、释延能、萧正楠、佟丽娅配音沈磊、杨梦露、金锋、韩秀一、孙晔、丁美婷

 

Form of cryptic crossword For the printing mistake, see typographical error. A barred grid, the kind used by Ximenes and Azed in their puzzles. A Printer's Devilry is a form of cryptic crossword puzzle, first invented by Afrit (Alistair Ferguson Ritchie) in 1937. A Printer's Devilry puzzle does not follow the standard Ximenean rules of crossword setting, since the clues do not define the answers.[1] Instead, each clue consists of a sentence from which a string of letters has been remo...

The Geography of Piedmont is that of a territory predominantly mountainous, 43.3%, but with extensive areas of hills which represent 30.3% of the territory, and of plains (26.4%). To the north and to the west Piedmont is surrounded by the Alps, to the south by the Apennines, and to the east by the Po plain. To the west Piedmont borders with France, to the north with Valle d'Aosta and Switzerland, to the east with Lombardy and Emilia Romagna, and to the south with Liguria. Piedmont is the seco...

 

خوسيه أنتونيو رييس (بالإسبانية: José Antonio Reyes)‏  معلومات شخصية الميلاد 1 سبتمبر 1983(1983-09-01)أطريرة  الوفاة 1 يونيو 2019 (عن عمر ناهز 35 عاماً)القلعة دو غواداريا  سبب الوفاة حادث مرور  الطول 1.75 م (5 قدم 9 بوصة)[1][2] مركز اللعب وسط الجنسية إسبانيا  اللقب رجل ا...

 

  关于与「舒畅 (演员)」標題相近或相同的条目,請見「舒畅」。 此條目應避免有陳列雜項、瑣碎資料的部分。 (2021年2月26日)請協助將有關資料重新編排成連貫性的文章,安置於適當章節或條目內。 此生者传记没有列出任何参考或来源。 (2021年2月26日)请协助補充可靠来源,针对在世人物的无法查证的内容将被立即移除。 舒畅女演员本名董丽丽国籍 中华人民共和...

The coat of arms of Aix-en-Provence Hành chính Quốc gia Pháp Vùng Provence-Alpes-Côte d'Azur Tỉnh Bouches-du-Rhône Quận Aix-en-Provence Liên xã Pays d'Aix Xã (thị) trưởng Maryse Joissains-Masini (UMP)(2008–2014) Thống kê Độ cao 173 m (568 ft) bình quân Diện tích đất1 186,08 km2 (71,85 dặm vuông Anh) INSEE/Mã bưu chính 13001/ 13100 hoặc 13090 Aix hay Aix-en-Provence là một xã ở tỉnh Bouches-du-Rhône, t...

 

Supir dan MajikanGenre Drama Roman SkenarioHilman HariwijayaCeritaHilman HariwijayaSutradaraDesiana LarasatiPemeran Sandra Dewi Agus Ringgo Salshabilla Adipura Alice Norin Didi Riyadi Anthony Dhini Aminarti Celine Evangelista Mieke Wijaya Rasyid Karim Penggubah lagu temaRadjaLagu pembukaRatu Cinta — RadjaLagu penutupRatu Cinta — RadjaPenata musikBellaNegara asalIndonesiaBahasa asliBahasa IndonesiaJmlh. musim1Jmlh. episode7ProduksiProduserLeo SutantoSinematografiKokoq PriatmokoPenyun...

 

Spanish journalist, actress, TV presenter In this Spanish name, the first or paternal surname is Alias and the second or maternal family name is García. Nerea AliasBornNerea Alias García (1984-01-02) 2 January 1984 (age 39)Anoeta, SpainNationalitySpanishOccupation(s)Journalistactresstv presenterYears active2003–presentEmployer(s)ETB 1ETB 2Notable workBetizuEgin kantu!TelevisionBetizuEgin kantu!BalbemendiSut&BlaiKontraEuskal Herria ZuzeneanKantugiroDe lo bueno mejorGu...

Bulgarian footballer In this Bulgarian name, the patronymic is Brankov and the family name is Chorbadzhiyski. Bozhidar Chorbadzhiyski Personal informationFull name Bozhidar Brankov ChorbadzhiyskiDate of birth (1995-08-08) 8 August 1995 (age 28)Place of birth Sofia, BulgariaHeight 1.95 m (6 ft 5 in)[1]Position(s) Centre backTeam informationCurrent team DiósgyőriNumber 5Youth career2004–2014 CSKA SofiaSenior career*Years Team Apps (Gls)2013–2020 CSKA Sofia ...

 

Bridge between Philadelphia, PA and Gloucester City, NJ Walt Whitman BridgeWalt Whitman Bridge, October 2006Coordinates39°54′19″N 75°07′47″W / 39.90528°N 75.12972°W / 39.90528; -75.12972Carries7 lanes[1] of I-76CrossesDelaware RiverLocalePhiladelphia, Pennsylvania to Gloucester City, New Jersey[1]Official nameWalt Whitman BridgeMaintained byDelaware River Port Authority of Pennsylvania and New JerseyID number4500010CharacteristicsDesignSteel...

 

British Liberal Democrat politician (born 1937) The Right HonourableThe Lord DholakiaOBE PC JP DLOfficial portrait, 2018Co-Deputy Leader of the Liberal Democrats in the House of LordsIncumbentAssumed office 24 November 2004Serving with The Lord Wallace of Saltaire (2004–2010) The Baroness Walmsley (2017–present) Leader The Lord McNally The Lord Wallace of Tankerness The Lord Newby President of the Liberal DemocratsIn office1 January 2001 – 31 December 2...

Leicester City Council elections are held every four years. Leicester City Council is the local authority for the unitary authority of Leicester in Leicestershire, England. Until 1 April 1997 it was a non-metropolitan district. Since 2011 it has also had a directly elected mayor. Since the last boundary changes in 2015, 54 councillors have been elected from 21 wards.[1] Summary of results Political group Councillors 1996 1999 2003 2007 2011 2015 2019 2023 Current Labour 41 30 20 38 52...

 

Indian satellite television provider It has been suggested that Sun Direct GO be merged into this article. (Discuss) Proposed since November 2023. SUN DIRECTTypePrivateIndustrySatellite televisionFoundedDecember 2007; 16 years ago (2007-12)Headquarters73, MRC Nagar Main Road, MRC Nagar, Chennai, IndiaArea servedIndiaKey peopleKalanithi Maran (Chairman)ProductsSatellite television, pay television, pay-per-viewRevenue ₹1,845 crore (US$230 million) (FY 2021)[1&#...

 

United States historic placeBank of StarbuckU.S. National Register of Historic Places LocationMain and McNeil Sts., Starbuck, WashingtonCoordinates46°31′11″N 118°7′35″W / 46.51972°N 118.12639°W / 46.51972; -118.12639Arealess than one acreBuilt1904NRHP reference No.78002739[1]Added to NRHPFebruary 8, 1978 The Bank of Starbuck, at Main and McNeil Sts. in Starbuck, Washington, is a historic building built in 1904. It was listed on the Nationa...

British paediatrician (1929–2021) ProfessorPeter DunnFRCP, FRCOG, FRCPCHBorn23 June 1929Birmingham, EnglandDied2 February 2021Bristol, EnglandNationalityBritishKnown forFounding the British Association of Perinatal MedicineAwardsJames Spence Medal 2002Scientific careerFieldsNeonatology, Perinatal Medicine WebsiteBristol Clinical Science People Peter MacNaughton Dunn, FRCP, FRCOG, FRCPCH (23 June 1929 – 2 February 2021) was an English paediatrician. Dunn was most notable for intro...

 

Japan accepted the UNESCO World Heritage Convention on 30 June 1992.[1] As of July 2021, twenty-five properties have been inscribed on the World Heritage List: twenty cultural sites and five natural sites.[1] A further five sites and one site extension have been submitted for future inscription and are currently on the Tentative List as of 2017.[1] Map Hōryū-jiHimejiYakushimaShirakami-SanchiKyotoShirakawa-gō and GokayamaHiroshima Peace MemorialItsukushima ShrineNara...

 

Strategi Solo vs Squad di Free Fire: Cara Menang Mudah!