数学运算符 (Unicode区段)
| 数学运算符 Mathematical Operators | |
|---|---|
| 範圍 | U+2200..U+22FF （256個碼位） |
| 平面 | 基本多文種平面（BMP） |
| 文字 | 通用 |
| 符號系列 | 數學符號 邏輯和集合運算子 關係運算子 |
| 已分配 | 256個碼位 |
| 未分配 | 0個保留碼位 |
| 統一碼版本歷史 | |
| 1.0.0 | 242 (+242) |
| 3.2 | 256 (+14) |
| 碼表 | |
| 點擊此處 | |
| 註釋：[1][2] | |
数学运算符是一個位於基本多文種平面的Unicode區塊，收錄了數學符號、邏輯符號和集合符號。
值得注意的是，本區塊沒有加號（+）、大于號（>）和小于號（<），因爲它們已經出現在基本拉丁字母Unicode區塊中。也沒有正負號（±）、乘號（×）和除號（÷），因爲它們也已編碼于拉丁字母補充-1區塊中。但本區塊包含另外一種减號（-），與基本拉丁字母區塊的連字暨減號（-）不同。
區塊
| 数学运算符 Mathematical Operators[1] Unicode Consortium 官方碼表（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 | ⋰ | ⋱ | ⋲ | ⋳ | ⋴ | ⋵ | ⋶ | ⋷ | ⋸ | ⋹ | ⋺ | ⋻ | ⋼ | ⋽ | ⋾ | ⋿ |
註釋
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變體序列
本區塊為标准化變體定義了16個變體序列。[3][4]採用VARIATION SELECTOR-1（VS01）呈現變體符號（取決於字體）：
| 碼位 | 基本 | +VS | 描述 |
|---|---|---|---|
| U+2205 | ∅ | ∅︀ | 被對角線穿過的0 |
| U+2229 | ∩ | ∩︀ | 襯線體 |
| U+222A | ∪ | ∪︀ | |
| U+2268 | ≨ | ≨︀ | 不等號斜線垂直 |
| U+2269 | ≩ | ≩︀ | |
| U+2272 | ≲ | ≲︀ | 相似號傾斜 且平行於下劃 |
| U+2273 | ≳ | ≳︀ | |
| U+228A | ⊊ | ⊊︀ | 斜線穿過 子集下部 |
| U+228B | ⊋ | ⊋︀ | |
| U+2293 | ⊓ | ⊓︀ | 襯線體 |
| U+2294 | ⊔ | ⊔︀ | |
| U+2295 | ⊕ | ⊕︀ | 不觸及圓圈 |
| U+2297 | ⊗ | ⊗︀ | |
| U+229C | ⊜ | ⊜︀ | 等號觸及圓圈 |
| U+22DA | ⋚ | ⋚︀ | 等號平行 |
| U+22DB | ⋛ | ⋛︀ |
歷史
以下Unicode文檔記錄了定義本區塊中特定字符的目的與過程：
| 版本 | 最終碼位[a] | 碼位数 | UTC ID | L2（英语：International Committee for Information Technology Standards） ID | WG2（英语：ISO/IEC JTC 1/SC 2） ID | 文檔 |
|---|---|---|---|---|---|---|
| 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 | |||||
另見
參考資料
- ^ 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）
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