Mathematical Alphanumeric Symbols is a Unicode block comprising styled forms of Latin and Greek letters and decimal digits that enable mathematicians to denote different notions with different letter styles. The letters in various fonts often have specific, fixed meanings in particular areas of mathematics. By providing uniformity over numerous mathematical articles and books, these conventions help to read mathematical formulas. These also may be used to differentiate between concepts that share a letter in a single problem.
Unicode now includes many such symbols (in the range U+1D400–U+1D7FF). The rationale behind this is that it enables design and usage of special mathematical characters (fonts) that include all necessary properties to differentiate from other alphanumerics, e.g. in mathematics an italic "𝐴" can have a different meaning from a roman letter "A". Unicode originally included a limited set of such letter forms in its Letterlike Symbols block before completing the set of Latin and Greek letter forms in this block beginning in version 3.1.
Unicode expressly recommends that these characters not be used in general text as a substitute for presentational markup;[3] the letters are specifically designed to be semantically different from each other. Unicode does not include a set of normal serif letters in the set.[a] Still they have found some usage on social media, for example by people who want a stylized user name,[4] and in email spam, in an attempt to bypass filters.
All these letter shapes may be manipulated with MathML's attribute mathvariant.
These tables show all styled forms of Latin and Greek letters, symbols and digits in the Unicode Standard, with the normal unstyled forms of these characters shown with a cyan background (the basic unstyled letters may be serif or sans-serif depending upon the font). The styled characters are mostly located in the Mathematical Alphanumeric Symbols block, but the 24 characters in cells with a pink background are located in the letterlike symbols block, for example, ℛ (script capital r) is at U+211B rather than the expected U+1D4AD which is reserved. In the code charts for the Unicode Standard, the reserved code points corresponding to the pink cell are annotated with the name and code point of the correct character.[5] There are a few characters which have names that suggest that they should belong in the tables below, but in fact do not because their official character names are misnomers:
U+2113ℓSCRIPT SMALL L; "despite its character name, this symbol is derived from a special italicized version of the small letter l".[6] It has various other specialized uses, such as a liter symbol and as the azimuthal quantum number symbol.
The Unicode values of the characters in the tables below, except those shown with pink backgrounds or index values of '–', are obtained by adding the base values from the "U+" header row to the index values in the left column (both values are hexadecimal).
The Unicode values of the characters in the tables below, except those shown with yellow backgrounds or index values of '–', are obtained by adding the base values from the "U+" header row to the index values in the left column (both values are hexadecimal).
Capital letters
Normal
Bold
Italic
Bold italic
Sans- serif bold
Sans- serif bold italic
U+
0391
1D6A8
1D6E2
1D71C
1D756
1D790
00
Α
𝚨
𝛢
𝜜
𝝖
𝞐
01
Β
𝚩
𝛣
𝜝
𝝗
𝞑
02
Γ
𝚪
𝛤
𝜞
𝝘
𝞒
03
Δ
𝚫
𝛥
𝜟
𝝙
𝞓
04
Ε
𝚬
𝛦
𝜠
𝝚
𝞔
05
Ζ
𝚭
𝛧
𝜡
𝝛
𝞕
06
Η
𝚮
𝛨
𝜢
𝝜
𝞖
07
Θ
𝚯
𝛩
𝜣
𝝝
𝞗
08
Ι
𝚰
𝛪
𝜤
𝝞
𝞘
09
Κ
𝚱
𝛫
𝜥
𝝟
𝞙
0A
Λ
𝚲
𝛬
𝜦
𝝠
𝞚
0B
Μ
𝚳
𝛭
𝜧
𝝡
𝞛
0C
Ν
𝚴
𝛮
𝜨
𝝢
𝞜
0D
Ξ
𝚵
𝛯
𝜩
𝝣
𝞝
0E
Ο
𝚶
𝛰
𝜪
𝝤
𝞞
0F
Π
𝚷
𝛱
𝜫
𝝥
𝞟
10
Ρ
𝚸
𝛲
𝜬
𝝦
𝞠
11
ϴ
𝚹
𝛳
𝜭
𝝧
𝞡
12
Σ
𝚺
𝛴
𝜮
𝝨
𝞢
13
Τ
𝚻
𝛵
𝜯
𝝩
𝞣
14
Υ
𝚼
𝛶
𝜰
𝝪
𝞤
15
Φ
𝚽
𝛷
𝜱
𝝫
𝞥
16
Χ
𝚾
𝛸
𝜲
𝝬
𝞦
17
Ψ
𝚿
𝛹
𝜳
𝝭
𝞧
18
Ω
𝛀
𝛺
𝜴
𝝮
𝞨
19
∇
𝛁
𝛻
𝜵
𝝯
𝞩
–
Ϝ
𝟊
Small letters
Normal
Bold
Italic
Bold italic
Sans- serif bold
Sans- serif bold italic
U+
03B1
1D6C2
1D6FC
1D736
1D770
1D7AA
00
α
𝛂
𝛼
𝜶
𝝰
𝞪
01
β
𝛃
𝛽
𝜷
𝝱
𝞫
02
γ
𝛄
𝛾
𝜸
𝝲
𝞬
03
δ
𝛅
𝛿
𝜹
𝝳
𝞭
04
ε
𝛆
𝜀
𝜺
𝝴
𝞮
05
ζ
𝛇
𝜁
𝜻
𝝵
𝞯
06
η
𝛈
𝜂
𝜼
𝝶
𝞰
07
θ
𝛉
𝜃
𝜽
𝝷
𝞱
08
ι
𝛊
𝜄
𝜾
𝝸
𝞲
09
κ
𝛋
𝜅
𝜿
𝝹
𝞳
0A
λ
𝛌
𝜆
𝝀
𝝺
𝞴
0B
μ
𝛍
𝜇
𝝁
𝝻
𝞵
0C
ν
𝛎
𝜈
𝝂
𝝼
𝞶
0D
ξ
𝛏
𝜉
𝝃
𝝽
𝞷
0E
ο
𝛐
𝜊
𝝄
𝝾
𝞸
0F
π
𝛑
𝜋
𝝅
𝝿
𝞹
10
ρ
𝛒
𝜌
𝝆
𝞀
𝞺
11
ς
𝛓
𝜍
𝝇
𝞁
𝞻
12
σ
𝛔
𝜎
𝝈
𝞂
𝞼
13
τ
𝛕
𝜏
𝝉
𝞃
𝞽
14
υ
𝛖
𝜐
𝝊
𝞄
𝞾
15
φ
𝛗
𝜑
𝝋
𝞅
𝞿
16
χ
𝛘
𝜒
𝝌
𝞆
𝟀
17
ψ
𝛙
𝜓
𝝍
𝞇
𝟁
18
ω
𝛚
𝜔
𝝎
𝞈
𝟂
19
∂
𝛛
𝜕
𝝏
𝞉
𝟃
1A
ϵ
𝛜
𝜖
𝝐
𝞊
𝟄
1B
ϑ
𝛝
𝜗
𝝑
𝞋
𝟅
1C
ϰ
𝛞
𝜘
𝝒
𝞌
𝟆
1D
ϕ
𝛟
𝜙
𝝓
𝞍
𝟇
1E
ϱ
𝛠
𝜚
𝝔
𝞎
𝟈
1F
ϖ
𝛡
𝜛
𝝕
𝞏
𝟉
–
ϝ
𝟋
Digits
The Unicode values of the characters in the tables below are obtained by adding the hexadecimal base values from the "U+" header row to the index values in the left column.
Aliprand, Joan (1999-02-05), "Mathematical Symbols", Approved Minutes -- UTC #78 & NCITS Subgroup L2 # 175 Joint Meeting, San Jose, CA -- December 1-4, 1998
Anderson, Deborah; Whistler, Ken; Pournader, Roozbeh; Moore, Lisa; Liang, Hai (2021-01-14), "25 Math Calligraphic Alphabets", Recommendations to UTC #166 January 2021 on Script Proposals
Moore, Lisa (2021-01-27), "Consensus 166-C33", UTC #166 Minutes, The UTC accepts 52 variation sequences to distinguish roundhand and chancery style mathematical script alphabetic characters
Freytag, Asmus (2004-11-18), Twenty six mathematical characters
^Unicode thus assumes a given font is a serif by default; a sans-serif font that supports the range would thus display the standard letters and the "sans-serif" symbols identically but could not display normal serif symbols of the same.
^Proposed code points and characters names may differ from final code points and names
^Refer to the history section of the Miscellaneous Mathematical Symbols-B block for additional math-related documents