Combining Diacritical Marks for Symbols

Combining Diacritical Marks for Symbols is a Unicode block containing arrows, dots, enclosures, and overlays for modifying symbol characters.

Combining Diacritical Marks for Symbols
RangeU+20D0..U+20FF
(48 code points)
PlaneBMP
ScriptsInherited
Assigned33 code points
Unused15 reserved code points
Unicode version history
1.0.018 (+18)
3.020 (+2)
3.227 (+7)
4.128 (+1)
5.032 (+4)
5.133 (+1)
Note: [1][2]

Its block name in Unicode 1.0 was simply Diacritical Marks for Symbols.[3]

Block

Combining Diacritical Marks for Symbols[1][2]
Official Unicode Consortium code chart (PDF)
 0123456789ABCDEF
U+20Dx ◌⃐ ◌⃑ ◌⃒ ◌⃓ ◌⃔ ◌⃕ ◌⃖ ◌⃗ ◌⃘ ◌⃙ ◌⃚ ◌⃛ ◌⃜ ◌⃝ ◌⃞ ◌⃟
U+20Ex ◌⃠ ◌⃡ ◌⃢ ◌⃣ ◌⃤ ◌⃥ ◌⃦ ◌⃧ ◌⃨ ◌⃩ ◌⃪ ◌⃫ ◌⃬ ◌⃭ ◌⃮ ◌⃯
U+20Fx ◌⃰
Notes
1.^ As of Unicode version 13.0
2.^ Grey areas indicate non-assigned code points

History

The following Unicode-related documents record the purpose and process of defining specific characters in the Combining Diacritical Marks for Symbols block:

VersionFinal code points[lower-alpha 1]CountL2 IDWG2 IDDocument
1.0.0U+20D0..20E118(to be determined)
L2/06-181Anderson, Deborah (2006-05-08), Responses to the UTC regarding L2/06-042, Proposal for Additional Cyrillic Characters
L2/06-108Moore, Lisa (2006-05-25), "Action item 107-A94", UTC #107 Minutes, Add an annotation to the names list for U+20DD COMBINING ENCLOSING CIRCLE.
3.0U+20E2..20E32L2/97-206N1668Proposal to encode two symbols, 1997-08-05
L2/98-007N1668R (pdf)Joint proposal to encode two symbols, 1998-02-13
L2/98-039Aliprand, Joan; Winkler, Arnold (1998-02-24), "3.C.3. Cartouche proposal for keyboard symbols", Preliminary Minutes - UTC #74 & L2 #171, Mountain View, CA - December 5, 1997
L2/98-082N1668R (doc)Joint proposal to encode enclosing screen and keycap, 1998-03-23
L2/98-286N1703Umamaheswaran, V. S.; Ksar, Mike (1998-07-02), "8.4", Unconfirmed Meeting Minutes, WG 2 Meeting #34, Redmond, WA, USA; 1998-03-16--20
L2/98-321N1905Revised text of 10646-1/FPDAM 23, AMENDMENT 23: Bopomofo Extended and other characters, 1998-10-22
L2/99-010N1903 (pdf, html, doc)Umamaheswaran, V. S. (1998-12-30), "6.7.6", Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25
L2/17-086Burge, Jeremy; et al. (2017-03-27), Add ZWJ, VS-16, Keycaps & Tags to Emoji_Component
L2/17-103Moore, Lisa (2017-05-18), "E.1.7 Add ZWJ, VS-16, Keycaps & Tags to Emoji_Component", UTC #151 Minutes
3.2U+20E41L2/98-056McGowan, Rick; Sampson, Geoffrey (1998-02-23), Triangular Overlay Character
L2/98-070Aliprand, Joan; Winkler, Arnold, "4.C.1.", Minutes of the joint UTC and L2 meeting from the meeting in Cupertino, February 25-27, 1998
L2/99-021N1941McGowan, Rick (1998-12-07), Request for Addition of Triangular Overlay Character
L2/99-077.1N1975Irish Comments on SC 2 N 3210, 1999-01-20
L2/98-419 (pdf, doc)Aliprand, Joan (1999-02-05), "Enclosing Triangle", Approved Minutes -- UTC #78 & NCITS Subgroup L2 # 175 Joint Meeting, San Jose, CA -- December 1-4, 1998
L2/99-176RMoore, Lisa (1999-11-04), "Motion 80-M20", Minutes from the joint UTC/L2 meeting in Seattle, June 8-10, 1999
L2/99-232N2003Umamaheswaran, V. S. (1999-08-03), "7.2.1.2", Minutes of WG 2 meeting 36, Fukuoka, Japan, 1999-03-09--15
U+20E5..20E84L2/00-119[lower-alpha 2]N2191RWhistler, Ken; Freytag, Asmus (2000-04-19), Encoding Additional Mathematical Symbols in Unicode
L2/00-234N2203 (rtf, txt)Umamaheswaran, V. S. (2000-07-21), "8.18", Minutes from the SC2/WG2 meeting in Beijing, 2000-03-21 -- 24
L2/00-115R2Moore, Lisa (2000-08-08), "Motion 83-M11", Minutes Of UTC Meeting #83
U+20E9..20EA2L2/99-010N1903 (pdf, html, doc)Umamaheswaran, V. S. (1998-12-30), "6.7.6", Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25
L2/01-142[lower-alpha 2]N2336Beeton, Barbara; Freytag, Asmus; Ion, Patrick (2001-04-02), Additional Mathematical Symbols
L2/01-156N2356Freytag, Asmus (2001-04-03), Additional Mathematical Characters (Draft 10)
L2/01-344N2353 (pdf, doc)Umamaheswaran, V. S. (2001-09-09), "7.7 Mathematical Symbols", Minutes from SC2/WG2 meeting #40 -- Mountain View, April 2001
4.1U+20EB1L2/03-194N2590Freytag, Asmus (2003-06-09), Additional Mathematical and Letterlike Characters
L2/04-196N2653 (pdf, doc)Umamaheswaran, V. S. (2004-06-04), "RESOLUTION M44.5 (Additions of individual characters), item g", Unconfirmed minutes of WG 2 meeting 44
5.0U+20EC..20EF4L2/04-406Freytag, Asmus; Sargent, Murray; Beeton, Barbara; Carlisle, David (2004-11-15), Progress report on Mathematical Symbols
L2/04-410Freytag, Asmus (2004-11-18), Twenty six mathematical characters
5.1U+20F01L2/07-011RN3198RFreytag, Asmus; Beeton, Barbara; Ion, Patrick; Sargent, Murray; Carlisle, David; Pournader, Roozbeh (2007-01-15), 29 Additional Mathematical and Symbol Characters
L2/07-015Moore, Lisa (2007-02-08), "Mathematical Characters and Symbols (C.4)", UTC #110 Minutes
L2/07-268N3253 (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
  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

References

  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.
  3. "3.8: Block-by-Block Charts" (PDF). The Unicode Standard. version 1.0. Unicode Consortium.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.