Miscellaneous Mathematical Symbols-A

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Miscellaneous Mathematical Symbols-A
(48 code points)
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]

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+27CC Long division
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
1.^ As of Unicode version 12.0


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]


  1. ^ "Unicode character database". The Unicode Standard. Retrieved 2016-07-09.
  2. ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2016-07-09.