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Miscellaneous Mathematical Symbols-A

From HandWiki - Reading time: 8 min
Short description: Unicode character block
Miscellaneous Mathematical Symbols-A
RangeU+27C0..U+27EF
(48 code points)
PlaneBMP
ScriptsCommon
Symbol setsMathematical notation
Logical notation
Assigned48 code points
Unused0 reserved code points
Unicode version history
3.228 (+28)
4.135 (+7)
5.039 (+4)
5.144 (+5)
6.046 (+2)
6.148 (+2)
Note: [1][2]
Graphical 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

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

Template:Unicode chart Miscellaneous Mathematical Symbols-A

History

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[lower-alpha 1] Count L2 ID WG2 ID Document
L2/01-227 Whistler, Ken (2001-05-22), WG2 Consent Docket for UTC #87 
L2/01-184R Moore, Lisa (2001-06-18), Minutes from the UTC/L2 meeting 
L2/01-344 N2353 (pdf, doc) Umamaheswaran, V. S. (2001-09-09), 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), 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), 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), Minutes from the UTC/L2 meeting #88 
L2/02-154 N2403 Umamaheswaran, V. S. (2002-04-22), 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), Comments accompanying the US positive vote on PDAM1 to ISO/IEC 10646:2003 
L2/04-316 Moore, Lisa (2004-08-19), 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 
L2/05-270 Whistler, Ken (2005-09-21), WG2 Consent Docket (Sophia Antipolis) 
L2/05-279 Moore, Lisa (2005-11-10), UTC #105 Minutes 
N2953 (pdf, doc) Umamaheswaran, V. S. (2006-02-16), 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), UTC #110 Minutes 
L2/07-268 N3253 (pdf, doc) Umamaheswaran, V. S. (2007-07-26), 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), UTC #106 Minutes 
N3103 (pdf, doc) Umamaheswaran, V. S. (2006-08-25), 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), 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), 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), 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), 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) 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
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See also

References

  1. ↑ "Unicode character database". The Unicode Standard. https://www.unicode.org/ucd/. Retrieved 2023-07-26. 
  2. ↑ "Enumerated Versions of The Unicode Standard". The Unicode Standard. https://www.unicode.org/versions/enumeratedversions.html. Retrieved 2023-07-26. 



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