数学运算符 (Unicode区块)
数学运算符是一个位于基本多文种平面的Unicode区块,收录了数学符号、逻辑符号和集合符号。
数学运算符 Mathematical Operators | |
---|---|
范围 | U+2200..U+22FF (256个码位) |
平面 | 基本多文种平面(BMP) |
文字 | 通用 |
符号系列 | 数学符号 逻辑和集合运算符 关系运算符 |
已分配 | 256个码位 |
未分配 | 0个保留码位 |
Unicode版本历史 | |
1.0.0 | 242 (+242) |
3.2 | 256 (+14) |
注释:[1][2] 官方码表 |
本页面包含特殊字符,部分操作系统及浏览器需要特殊字母与符号支持才能正确显示,否则可能出现乱码、问号、空格等其它符号。 |
值得注意的是,本区块没有加号(+)、大于号(>)和小于号(<),因为它们已经出现在基本拉丁字母Unicode区块中。也没有正负号(±)、乘号(×)和除号(÷),因为它们也已编码于拉丁字母补充-1区块中。但本区块包含另外一种减号(-),与基本拉丁字母区块的连字暨减号(-)不同。
区块
数学运算符 Mathematical Operators[1] Unicode Consortium 官方码表(PDF) | ||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
U+220x | ∀ | ∁ | ∂ | ∃ | ∄ | ∅ | ∆ | ∇ | ∈ | ∉ | ∊ | ∋ | ∌ | ∍ | ∎ | ∏ |
U+221x | ∐ | ∑ | − | ∓ | ∔ | ∕ | ∖ | ∗ | ∘ | ∙ | √ | ∛ | ∜ | ∝ | ∞ | ∟ |
U+222x | ∠ | ∡ | ∢ | ∣ | ∤ | ∥ | ∦ | ∧ | ∨ | ∩ | ∪ | ∫ | ∬ | ∭ | ∮ | ∯ |
U+223x | ∰ | ∱ | ∲ | ∳ | ∴ | ∵ | ∶ | ∷ | ∸ | ∹ | ∺ | ∻ | ∼ | ∽ | ∾ | ∿ |
U+224x | ≀ | ≁ | ≂ | ≃ | ≄ | ≅ | ≆ | ≇ | ≈ | ≉ | ≊ | ≋ | ≌ | ≍ | ≎ | ≏ |
U+225x | ≐ | ≑ | ≒ | ≓ | ≔ | ≕ | ≖ | ≗ | ≘ | ≙ | ≚ | ≛ | ≜ | ≝ | ≞ | ≟ |
U+226x | ≠ | ≡ | ≢ | ≣ | ≤ | ≥ | ≦ | ≧ | ≨ | ≩ | ≪ | ≫ | ≬ | ≭ | ≮ | ≯ |
U+227x | ≰ | ≱ | ≲ | ≳ | ≴ | ≵ | ≶ | ≷ | ≸ | ≹ | ≺ | ≻ | ≼ | ≽ | ≾ | ≿ |
U+228x | ⊀ | ⊁ | ⊂ | ⊃ | ⊄ | ⊅ | ⊆ | ⊇ | ⊈ | ⊉ | ⊊ | ⊋ | ⊌ | ⊍ | ⊎ | ⊏ |
U+229x | ⊐ | ⊑ | ⊒ | ⊓ | ⊔ | ⊕ | ⊖ | ⊗ | ⊘ | ⊙ | ⊚ | ⊛ | ⊜ | ⊝ | ⊞ | ⊟ |
U+22Ax | ⊠ | ⊡ | ⊢ | ⊣ | ⊤ | ⊥ | ⊦ | ⊧ | ⊨ | ⊩ | ⊪ | ⊫ | ⊬ | ⊭ | ⊮ | ⊯ |
U+22Bx | ⊰ | ⊱ | ⊲ | ⊳ | ⊴ | ⊵ | ⊶ | ⊷ | ⊸ | ⊹ | ⊺ | ⊻ | ⊼ | ⊽ | ⊾ | ⊿ |
U+22Cx | ⋀ | ⋁ | ⋂ | ⋃ | ⋄ | ⋅ | ⋆ | ⋇ | ⋈ | ⋉ | ⋊ | ⋋ | ⋌ | ⋍ | ⋎ | ⋏ |
U+22Dx | ⋐ | ⋑ | ⋒ | ⋓ | ⋔ | ⋕ | ⋖ | ⋗ | ⋘ | ⋙ | ⋚ | ⋛ | ⋜ | ⋝ | ⋞ | ⋟ |
U+22Ex | ⋠ | ⋡ | ⋢ | ⋣ | ⋤ | ⋥ | ⋦ | ⋧ | ⋨ | ⋩ | ⋪ | ⋫ | ⋬ | ⋭ | ⋮ | ⋯ |
U+22Fx | ⋰ | ⋱ | ⋲ | ⋳ | ⋴ | ⋵ | ⋶ | ⋷ | ⋸ | ⋹ | ⋺ | ⋻ | ⋼ | ⋽ | ⋾ | ⋿ |
注释
|
变体序列
本区块为标准化变体定义了16个变体序列。[3][4]采用U+FE00 ︀ VARIATION SELECTOR-1(VS01)呈现变体符号(取决于字体):
码位 | 基本 | +VS | 描述 |
---|---|---|---|
U+2205 | ∅ | ∅︀ | 被对角线穿过的0 |
U+2229 | ∩ | ∩︀ | 衬线体 |
U+222A | ∪ | ∪︀ | |
U+2268 | ≨ | ≨︀ | 不等号斜线垂直 |
U+2269 | ≩ | ≩︀ | |
U+2272 | ≲ | ≲︀ | 相似号倾斜 且平行于下划 |
U+2273 | ≳ | ≳︀ | |
U+228A | ⊊ | ⊊︀ | 斜线穿过 子集下部 |
U+228B | ⊋ | ⊋︀ | |
U+2293 | ⊓ | ⊓︀ | 衬线体 |
U+2294 | ⊔ | ⊔︀ | |
U+2295 | ⊕ | ⊕︀ | 不触及圆圈 |
U+2297 | ⊗ | ⊗︀ | |
U+229C | ⊜ | ⊜︀ | 等号触及圆圈 |
U+22DA | ⋚ | ⋚︀ | 等号平行 |
U+22DB | ⋛ | ⋛︀ |
历史
以下Unicode文档记录了定义本区块中特定字符的目的与过程:
版本 | 最终码位[a] | 码位数 | UTC ID | L2 ID | WG2 ID | 文档 |
---|---|---|---|---|---|---|
1.0.0 | U+2200..22F1 | 242 | (待考) | |||
UTC/1999-013 | Karlsson, Kent, Tildes and micro sign decompositions, 1999-05-27 | |||||
L2/99-176R | Moore, Lisa, Not Tilde, Minutes from the joint UTC/L2 meeting in Seattle, June 8-10, 1999, 1999-11-04 | |||||
L2/00-115R2 | Moore, Lisa, Motion 83-M21, Minutes Of UTC Meeting #83, 2000-08-08 | |||||
L2/01-342 | Suignard, Michel, T.9 B.1 List of combining characters/Variation selectors, Comments accompanying the US positive vote on the FPDAM 1 to ISO/IEC 10646-1:2001, 2001-09-10 | |||||
L2/07-268 | N3253 (pdf, doc (页面存档备份,存于互联网档案馆)) | Umamaheswaran, V. S., M50.7 (Math symbol glyph correction) [U+22C4], Unconfirmed minutes of WG 2 meeting 50, Frankfurt-am-Main, Germany; 2007-04-24/27, 2007-07-26 | ||||
L2/15-268 | Beeton, Barbara; Freytag, Asmus; Iancu, Laurențiu; Sargent, Murray, Proposal to Represent the Slashed Zero Variant of Empty Set, 2015-10-30 | |||||
L2/15-254 | Moore, Lisa, B.12.1.2 Proposal to Represent the Slashed Zero Variant of Empty Set, UTC #145 Minutes, 2015-11-16 | |||||
3.2 | U+22F2..22FF | 14 | L2/00-119[b] | N2191R (页面存档备份,存于互联网档案馆) | Whistler, Ken; Freytag, Asmus, Encoding Additional Mathematical Symbols in Unicode, 2000-04-19 | |
L2/00-234 | N2203 (rtf, txt (页面存档备份,存于互联网档案馆)) | Umamaheswaran, V. S., 8.18, Minutes from the SC2/WG2 meeting in Beijing, 2000-03-21 -- 24, 2000-07-21 | ||||
L2/00-115R2 | Moore, Lisa, Motion 83-M11, Minutes Of UTC Meeting #83, 2000-08-08 | |||||
另见
参考资料
- ^ Unicode character database. The Unicode Standard. [2016-07-09]. (原始内容存档于2017-09-25).
- ^ Enumerated Versions of The Unicode Standard. The Unicode Standard. [2016-07-09]. (原始内容存档于2016-06-29).
- ^ Unicode Character Database: Standardized Variation Sequences. The Unicode Consortium. [2022-06-05]. (原始内容存档于2021-02-09).
- ^ Whistler, Ken; Freytag, Asmus, Symbol variants defined using a Variation Selector, L2/00-119: Encoding Additional Mathematical Symbols in Unicode (PDF), 2000-04-19 [2022-06-05], (原始内容存档 (PDF)于2019-06-15)