Miscellaneous Mathematical Symbols-B

Miscellaneous Mathematical Symbols-B
Range	U+2980..U+29FF; (128 code points)
Plane	BMP
Scripts	Common
Assigned	128 code points
Unused	0 reserved code points
Unicode version history
3.2	128 (+128)
	Note:

Short description: Unicode character block

Miscellaneous Mathematical Symbols-B is a Unicode block containing miscellaneous mathematical symbols, including brackets, angles, and circle symbols.

Block

Template:Unicode chart Miscellaneous Mathematical Symbols-B

Variant

The Miscellaneous Mathematical Symbols-B block has one variation sequence defined for a standardized variant. Variation selector-1 (VS1) (U+FE00) can be used with U+29B7 ⦷ to request a glyph where the parallel lines touch the circle.^[3]

Usage

Some of these symbols are used in Z notation. Specifically

U+2981 ⦁ Z NOTATION SPOT
U+2982 ⦂ Z NOTATION TYPE COLON
U+2987 ⦇ Z NOTATION LEFT IMAGE BRACKET
U+2988 ⦈ Z NOTATION RIGHT IMAGE BRACKET
U+2989 ⦉ Z NOTATION LEFT BINDING BRACKET
U+298A ⦊ Z NOTATION RIGHT BINDING BRACKET

The last two symbols are used in combinatorial game theory

U+29FE ⧾ TINY
U+29FF ⧿ MINY

History

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

Version	Final code points^{[lower-alpha 1]}	Count	L2 ID	WG2 ID
L2/98-406		Sargent, Murray (1998-12-01), Proposal to encode mathematical variant tags
L2/98-419 (pdf, doc)		Aliprand, Joan (1999-02-05), Approved Minutes -- UTC #78 & NCITS Subgroup L2 # 175 Joint Meeting, San Jose, CA -- December 1-4, 1998
L2/99-160		Beeton, Barbara (1999-06-01), Proposal to encode mathematical variant tags
L2/99-238		Consolidated document containing 6 Japanese proposals, 1999-07-15
	N2093	Addition of medical symbols and enclosed numbers, 1999-09-13
L2/00-010	N2103	Umamaheswaran, V. S. (2000-01-05), Minutes of WG 2 meeting 37, Copenhagen, Denmark: 1999-09-13—16
L2/00-002		Beeton, Barbara (2000-01-09), Request for assignment of codes to mathematical and technical symbols that do not appear in Unicode 2.0 or ISO/IEC 10646
L2/00-024		Shibano, Kohji (2000-01-31), JCS proposal revised
L2/00-005R2		Moore, Lisa (2000-02-14), Minutes of UTC #82 in San Jose
L2/00-094	N2191	Proposal for Encoding Additional Mathematical Symbols in the BMP, 2000-03-14
L2/00-098, L2/00-098-page5	N2195	Rationale for non-Kanji characters proposed by JCS committee, 2000-03-15
L2/00-119	N2191R	Whistler, Ken; Freytag, Asmus (2000-04-19), Encoding Additional Mathematical Symbols in Unicode
L2/00-234	N2203 (rtf, txt)	Umamaheswaran, V. S. (2000-07-21), Minutes from the SC2/WG2 meeting in Beijing, 2000-03-21 -- 24
L2/00-115R2		Moore, Lisa (2000-08-08), Minutes Of UTC Meeting #83
L2/00-298	N2258	Sato, T. K. (2000-09-04), JIS X 0213 symbols part-2
L2/01-050	N2253	Umamaheswaran, V. S. (2001-01-21), Minutes of the SC2/WG2 meeting in Athens, September 2000
L2/01-114	N2328	Summary of Voting on SC 2 N 3503, ISO/IEC 10646-1: 2000/PDAM 1, 2001-03-09
L2/01-147 (pdf, html)	N2343	Everson, Michael (2001-04-03), Encoding of Long Arrows
L2/01-012R		Moore, Lisa (2001-05-21), Minutes UTC #86 in Mountain View, Jan 2001
L2/01-317		Suignard, Michel (2001-08-14), Bracket Disunification & Normalization
L2/01-342		Suignard, Michel (2001-09-10), Comments accompanying the US positive vote on the FPDAM 1 to ISO/IEC 10646-1:2001
L2/01-386R	N2389R	Suignard, Michel (2001-10-26), Disposition of comments on SC2 N 3530 (FPDAM text for Amendment 1 to ISO/IEC 10646-1:2000) - revised version
L2/13-145	N4434	Suignard, Michel (2013-07-18), Math characters and variation sequences
	N4403 (pdf, doc)	Umamaheswaran, V. S. (2014-01-28), Unconfirmed minutes of WG 2 meeting 61, Holiday Inn, Vilnius, Lithuania; 2013-06-10/14
L2/25-126	N5330	Mayer, Uwe (2025-03-24), Proposal to encode 17 geometric shapes [Affects U+29B7]
L2/25-187		Kučera, Jan; Anderson, Deborah; Pournader, Roozbeh; Constable, Peter; Goregaokar, Manish; Leroy, Robin (2025-07-18), Recommendations to UTC #184 (July 2025) on Script Proposals
L2/25-181		Leroy, Robin (2025-08-07), UTC #184 Minutes, "UTC accepts the variation sequence 29B7 FE00 for Unicode 17.0"
U+2997..2998, 29D8..29DB, 29E6, 29FC..29FF	11	L2/01-064		Ion, Patrick (2001-01-24), Mathematical Variant Symbols
		L2/01-067	N2318	Beeton, Barbara; Freytag, Asmus; Ion, Patrick (2001-01-25), Additional Mathematical Symbols
		L2/01-142	N2336	Beeton, Barbara; Freytag, Asmus; Ion, Patrick (2001-04-02), Additional Mathematical Symbols
		L2/01-156	N2356	Freytag, Asmus (2001-04-03), Additional Mathematical Characters (Draft 10)
		L2/01-159	N2344	Ad-hoc report on Mathematical Symbols, 2001-04-03
		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
		L2/01-386R	N2389R	Suignard, Michel (2001-10-26), Disposition of comments on SC2 N 3530 (FPDAM text for Amendment 1 to ISO/IEC 10646-1:2000) - revised version
↑ Proposed code points and characters names may differ from final code points and names

References

↑ "Unicode character database". The Unicode Standard. https://www.unicode.org/ucd/. Retrieved 2023-07-26.
↑ "Enumerated Versions of The Unicode Standard". The Unicode Standard. https://www.unicode.org/versions/enumeratedversions.html. Retrieved 2023-07-26.
↑ "Unicode Character Database: Standardized Variation Sequences". The Unicode Consortium. https://www.unicode.org/Public/UCD/latest/ucd/StandardizedVariants.txt.

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[final-4] Proposed code points and characters names may differ from final code points and names

[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.

[3] "Unicode Character Database: Standardized Variation Sequences". The Unicode Consortium. https://www.unicode.org/Public/UCD/latest/ucd/StandardizedVariants.txt.

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