Miscellaneous Mathematical Symbols-A

Unicode character block

Miscellaneous Mathematical Symbols-A

Range| U+27C0..U+27EF
(48 code points)
Plane| BMP
Scripts| Common
Symbol sets| Mathematical notation
Logical notation
Assigned| 48 code points
Unused| 0 reserved code points
Unicode version history
3.2 (2002)| 28 (+28)
4.1 (2005)| 35 (+7)
5.0 (2006)| 39 (+4)
5.1 (2008)| 44 (+5)
6.0 (2010)| 46 (+2)
6.1 (2012)| 48 (+2)
Unicode documentation
Code chart ∣ Web page
Note: [1][2]
Visual representation of the Miscellaneous Mathematical Symbols-A Unicode block.

Miscellaneous Mathematical Symbols-A is a Unicode block containing characters for mathematical, logical, and database notation.

## Character table

[edit]

Code  | Result  | Description

|
|

U+27C0  | ⟀  | Three dimensional angle
U+27C1  | ⟁  | White triangle containing small white triangle
U+27C2  | ⟂  | Perpendicular
U+27C3  | ⟃  | Open subset
U+27C4  | ⟄  | Open superset
U+27C5  | ⟅  | Left S-shaped bag delimiter
U+27C6  | ⟆  | Right S-shaped bag delimiter
U+27C7  | ⟇  | Or with dot inside
U+27C8  | ⟈  | Reverse solidus preceding subset
U+27C9  | ⟉  | Superset preceding solidus
U+27CA  | ⟊  | Vertical bar with horizontal stroke
U+27CB  | ⟋  | Mathematical rising diagonal
U+27CC  | ⟌  | Long division
U+27CD  | ⟍  | Mathematical falling diagonal
U+27CE  | ⟎  | Squared logical and
U+27CF  | ⟏  | Squared logical or
U+27D0  | ⟐  | White diamond with centered dot
U+27D1  | ⟑  | And with dot
U+27D2  | ⟒  | Element of opening upward
U+27D3  | ⟓  | Lower right corner with dot
U+27D4  | ⟔  | Upper left corner with dot
U+27D5  | ⟕  | Left outer join
U+27D6  | ⟖  | Right outer join
U+27D7  | ⟗  | Full outer join
U+27D8  | ⟘  | Large up tack
U+27D9  | ⟙  | Large down tack
U+27DA  | ⟚  | Left and right double turnstile
U+27DB  | ⟛  | Left and right tack
U+27DC  | ⟜  | Left multimap
U+27DD  | ⟝  | Long right tack
U+27DE  | ⟞  | Long left tack
U+27DF  | ⟟  | Up tack with circle above
U+27E0  | ⟠  | Lozenge divided by horizontal rule
U+27E1  | ⟡  | White concave-sided diamond
U+27E2  | ⟢  | White concave-sided diamond with leftward tick
U+27E3  | ⟣  | White concave-sided diamond with rightward tick
U+27E4  | ⟤  | White square with leftward tick
U+27E5  | ⟥  | White square with rightward tick
U+27E6  | ⟦  | Mathematical left white square bracket
U+27E7  | ⟧  | Mathematical right white square bracket
U+27E8  | ⟨  | Mathematical left angle bracket
U+27E9  | ⟩  | Mathematical right angle bracket
U+27EA  | ⟪  | Mathematical left double angle bracket
U+27EB  | ⟫  | Mathematical right double angle bracket
U+27EC  | ⟬  | Mathematical left white tortoise shell bracket
U+27ED  | ⟭  | Mathematical right white tortoise shell bracket
U+27EE  | ⟮  | Mathematical left flattened parenthesis
U+27EF  | ⟯  | Mathematical right flattened parenthesis

## Compact table

[edit]

Miscellaneous Mathematical Symbols-A[1]
Official Unicode Consortium code chart (PDF)

| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F
U+27Cx  | ⟀ | ⟁  | ⟂ | ⟃ | ⟄ | ⟅  | ⟆  | ⟇ | ⟈  | ⟉  | ⟊ | ⟋  | ⟌ | ⟍  | ⟎ | ⟏
U+27Dx  | ⟐  | ⟑ | ⟒  | ⟓  | ⟔  | ⟕ | ⟖ | ⟗ | ⟘ | ⟙ | ⟚ | ⟛  | ⟜  | ⟝  | ⟞  | ⟟
U+27Ex  | ⟠ | ⟡  | ⟢  | ⟣  | ⟤  | ⟥  | ⟦ | ⟧ | ⟨ | ⟩ | ⟪ | ⟫ | ⟬ | ⟭ | ⟮ | ⟯
Notes

1.^ As of Unicode version 16.0

## History

[edit]

The following Unicode-related documents record the purpose and process of defining specific characters in the Miscellaneous Mathematical Symbols-A block:

Version | Final code points[a] | Count | L2 ID | WG2 ID | Document

|
|
|
|
|

3.2 | U+27D0..27E5 | 22 | L2/01-142[b] | N2336 | Beeton, Barbara; Freytag, Asmus; Ion, Patrick (2001-04-02), Additional Mathematical Symbols
L2/01-227 |  | Whistler, Ken (2001-05-22), "ITEM 3", WG2 Consent Docket for UTC #87
L2/01-184R |  | Moore, Lisa (2001-06-18), "Motion 87-M16, ITEM 3", Minutes from the UTC/L2 meeting
L2/01-344 | N2353 (pdf, doc) | Umamaheswaran, V. S. (2001-09-09), "Resolution M40.4", Minutes from SC2/WG2 meeting #40 -- Mountain View, April 2001
U+27E6..27EB | 6 | L2/99-052 |  | Freytag, Asmus (1999-02-05), The math pieces from the symbol font
L2/01-033 |  | Karlsson, Kent; Freytag, Asmus (2001-01-16), Disunify braces/brackets for math, computing science, and Z notation from similar-looking CJK braces/brackets
L2/01-159 | N2344 | Ad-hoc report on Mathematical Symbols, 2001-04-03
L2/01-157 | N2345R | Karlsson, Kent (2001-04-04), Proposal to disunify certain fencing CJK punctuation marks from similar-looking Math fences
L2/01-168 |  | Whistler, Ken (2001-04-10), Bracket Disunification & Normalization Hell
L2/01-012R |  | Moore, Lisa (2001-05-21), "Disunifying Braces and Brackets", Minutes UTC #86 in Mountain View, Jan 2001
L2/01-223 |  | Suignard, Michel (2001-05-23), Discussion of Issues Regarding Bracket Disunification
L2/01-184R |  | Moore, Lisa (2001-06-18), "Motion 87-M21", Minutes from the UTC/L2 meeting, "Reverse the decision made in motion 86-M6 not to disunify brackets."
L2/01-317 |  | Suignard, Michel (2001-08-14), Bracket Disunification & Normalization
L2/01-295R |  | Moore, Lisa (2001-11-06), "Bracket Disunification and Normalization", Minutes from the UTC/L2 meeting #88
L2/02-154 | N2403 | Umamaheswaran, V. S. (2002-04-22), "Resolution M41.1", Draft minutes of WG 2 meeting 41, Hotel Phoenix, Singapore, 2001-10-15/19
4.1 | U+27C0..27C1 | 2 | L2/03-187 | N2612-6 | Pantelia, Maria (2003-06-11), Proposal to encode ancient Greek mathematical characters in the UCS
U+27C2 | 1 | L2/03-194 | N2590 | Freytag, Asmus (2003-06-09), Additional Mathematical and Letterlike Characters
U+27C3..27C6 | 4 | L2/03-410 | N2680R | Freytag, Asmus (2003-10-30), Additional Mathematical Characters
L2/04-098 |  | Suignard, Michel (2004-02-04), "T.10 Miscellaneous Mathematical, item b", Comments accompanying the US positive vote on PDAM1 to ISO/IEC 10646:2003
L2/04-316 |  | Moore, Lisa (2004-08-19), "100-C6", UTC #100 Minutes
5.0 | U+27C7..27C9 | 3 | L2/04-406 |  | Freytag, Asmus; Sargent, Murray; Beeton, Barbara; Carlisle, David (2004-11-15), Progress report on Mathematical Symbols
L2/04-410 |  | Freytag, Asmus (2004-11-18), Twenty six mathematical characters
U+27CA | 1 | L2/05-189 | N2958 | Lehtiranta, Juhani; Ruppel, Klaas; Suutari, Toni; Trosterud, Trond (2005-07-22), Report on progress in implementing the Uralic Phonetic Alphabet with indication of the need for additional characters and symbols
L2/05-261 | N2989 | Ruppel, Klaas; Kolehmainen, Erkki I.; Everson, Michael; Freytag, Asmus; Whistler, Ken (2005-09-13), Proposal to add six additional Uralicist characters to the UCS
L2/05-270 |  | Whistler, Ken (2005-09-21), "A. Uralicist character additions", WG2 Consent Docket (Sophia Antipolis)
L2/05-279 |  | Moore, Lisa (2005-11-10), "Consensus 105-C29", UTC #105 Minutes
| N2953 (pdf, doc) | Umamaheswaran, V. S. (2006-02-16), "7.4.7", Unconfirmed minutes of WG 2 meeting 47, Sophia Antipolis, France; 2005-09-12/15
5.1 | U+27CC, 27EE..27EF | 3 | L2/07-011R | N3198R | Freytag, Asmus; Beeton, Barbara; Ion, Patrick; Sargent, Murray; Carlisle, David; Pournader, Roozbeh (2007-01-15), 29 Additional Mathematical and Symbol Characters
L2/07-015 |  | Moore, Lisa (2007-02-08), "Mathematical Characters and Symbols (C.4)", UTC #110 Minutes
L2/07-268 | N3253 (pdf, doc) | Umamaheswaran, V. S. (2007-07-26), "M50.16", Unconfirmed minutes of WG 2 meeting 50, Frankfurt-am-Main, Germany; 2007-04-24/27
U+27EC..27ED | 2 | L2/06-054R | N3040 | Freytag, Asmus; Beeton, Barbara; Sargent, Murray (2006-02-09), Proposal for the Addition of Two Mathematical Bracket Characters
L2/06-008R2 |  | Moore, Lisa (2006-02-13), "C.21", UTC #106 Minutes
| N3103 (pdf, doc) | Umamaheswaran, V. S. (2006-08-25), "M48.22", Unconfirmed minutes of WG 2 meeting 48, Mountain View, CA, USA; 2006-04-24/27
6.0 | U+27CE..27CF | 2 | L2/09-273 | N3677 | Iancu, Laurențiu (2009-07-28), Proposal to Encode Two Mathematical Symbols
L2/09-225R |  | Moore, Lisa (2009-08-17), "D.2.2", UTC #120 / L2 #217 Minutes
L2/09-359 |  | Iancu, Laurențiu (2009-10-21), Follow-up on Action Item 120-A77
| N3703 (pdf, doc) | Umamaheswaran, V. S. (2010-04-13), "M55.9b", Unconfirmed minutes of WG 2 meeting no. 55, Tokyo 2009-10-26/30
6.1 | U+27CB, 27CD | 2 | L2/09-397 |  | Iancu, Laurențiu (2009-10-26), Proposal to Encode Mathematical Diagonals
L2/09-335R |  | Moore, Lisa (2009-11-10), "D.2.1", UTC #121 / L2 #218 Minutes
L2/10-007R | N3763 | Anderson, Deborah; Beeton, Barbara; Iancu, Laurențiu (2010-01-12), Revised Proposal to Encode Mathematical Diagonals
L2/10-010 |  | Constable, Peter; Iancu, Laurențiu; Sargent, Murray (2010-01-13), Proposal to rename the diagonal symbols U+27CB and U+27CD in the pipeline
L2/10-015R |  | Moore, Lisa (2010-02-09), "Consensus 122-C11", UTC #122 / L2 #219 Minutes, "Change the name of U+27CB from RISING DIAGONAL to MATHEMATICAL RISING DIAGONAL and U+27CD from FALLING DIAGONAL to MATHEMATICAL FALLING DIAGONAL."
| N3803 (pdf, doc) | "M56.08c", Unconfirmed minutes of WG 2 meeting no. 56, 2010-09-24

1. ^ Proposed code points and characters names may differ from final code points and names
2. ^ Refer to the history section of the Miscellaneous Mathematical Symbols-B block for additional math-related documents

## See also

[edit]

* Mathematical operators and symbols in Unicode

## References

[edit]

1. ^ "Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
2. ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.

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