Combining Diacritical Marks for Symbols

In today's world, Combining Diacritical Marks for Symbols has become a topic of great relevance and interest to people around the world. With the advancement of technology and globalization, Combining Diacritical Marks for Symbols has acquired increasing importance in people's daily lives, impacting areas such as education, work, politics, health, among others. This is why it is crucial to understand and analyze in detail how Combining Diacritical Marks for Symbols is changing and shaping the world we live in, as well as the possible implications and consequences this may have in the future. In this article, we will thoroughly explore the impact and relevance of Combining Diacritical Marks for Symbols today, as well as the challenges and opportunities it presents for modern society.

Combining Diacritical Marks for Symbols
RangeU+20D0..U+20FF
(48 code points)
PlaneBMP
ScriptsInherited
Assigned33 code points
Unused15 reserved code points
Unicode version history
1.0.0 (1991)18 (+18)
3.0 (1999)20 (+2)
3.2 (2002)27 (+7)
4.1 (2005)28 (+1)
5.0 (2006)32 (+4)
5.1 (2008)33 (+1)
Unicode documentation
Code chart ∣ Web page
Note:

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

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

Block

Combining Diacritical Marks for Symbols
Official Unicode Consortium code chart (PDF)
  0 1 2 3 4 5 6 7 8 9 A B C D E F
U+20Dx ◌⃐ ◌⃑ ◌⃒ ◌⃓ ◌⃔ ◌⃕ ◌⃖ ◌⃗ ◌⃘ ◌⃙ ◌⃚ ◌⃛ ◌⃜ ◌⃝ ◌⃞ ◌⃟
U+20Ex ◌⃠ ◌⃡ ◌⃢ ◌⃣ ◌⃤ ◌⃥ ◌⃦ ◌⃧ ◌⃨ ◌⃩ ◌⃪ ◌⃫ ◌⃬ ◌⃭ ◌⃮ ◌⃯
U+20Fx ◌⃰
Notes
1.^ As of Unicode version 15.1
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:

Version Final code points Count L2 ID WG2 ID Document
1.0.0 U+20D0..20E1 18 (to be determined)
L2/06-181 Anderson, Deborah (2006-05-08), Responses to the UTC regarding L2/06-042, Proposal for Additional Cyrillic Characters
L2/06-108 Moore, Lisa (2006-05-25), "Action item 107-A94", UTC #107 Minutes, Add an annotation to the names list for U+20DD COMBINING ENCLOSING CIRCLE.
3.0 U+20E2..20E3 2 L2/97-206 N1668 Proposal to encode two symbols, 1997-08-05
L2/98-007 N1668R (pdf) Joint proposal to encode two symbols, 1998-02-13
L2/98-039 Aliprand, 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
L2/98-082 N1668R (doc) Joint proposal to encode enclosing screen and keycap, 1998-03-23
L2/98-286 N1703 Umamaheswaran, V. S.; Ksar, Mike (1998-07-02), "8.4", Unconfirmed Meeting Minutes, WG 2 Meeting #34, Redmond, WA, USA; 1998-03-16--20
L2/98-321 N1905 Revised text of 10646-1/FPDAM 23, AMENDMENT 23: Bopomofo Extended and other characters, 1998-10-22
L2/99-010 N1903 (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
L2/17-086 Burge, Jeremy; et al. (2017-03-27), Add ZWJ, VS-16, Keycaps & Tags to Emoji_Component
L2/17-103 Moore, Lisa (2017-05-18), "E.1.7 Add ZWJ, VS-16, Keycaps & Tags to Emoji_Component", UTC #151 Minutes
3.2 U+20E4 1 L2/98-056 McGowan, Rick; Sampson, Geoffrey (1998-02-23), Triangular Overlay Character
L2/98-070 Aliprand, Joan; Winkler, Arnold, "4.C.1.", Minutes of the joint UTC and L2 meeting from the meeting in Cupertino, February 25-27, 1998
L2/99-021 N1941 McGowan, Rick (1998-12-07), Request for Addition of Triangular Overlay Character
L2/99-077.1 N1975 Irish 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
L2/99-176R Moore, Lisa (1999-11-04), "Motion 80-M20", Minutes from the joint UTC/L2 meeting in Seattle, June 8-10, 1999
L2/99-232 N2003 Umamaheswaran, V. S. (1999-08-03), "7.2.1.2", Minutes of WG 2 meeting 36, Fukuoka, Japan, 1999-03-09--15
U+20E5..20E8 4 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), "8.18", Minutes from the SC2/WG2 meeting in Beijing, 2000-03-21 -- 24
L2/00-115R2 Moore, Lisa (2000-08-08), "Motion 83-M11", Minutes Of UTC Meeting #83
U+20E9..20EA 2 L2/99-010 N1903 (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 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)
L2/01-344 N2353 (pdf, doc) Umamaheswaran, V. S. (2001-09-09), "7.7 Mathematical Symbols", Minutes from SC2/WG2 meeting #40 -- Mountain View, April 2001
4.1 U+20EB 1 L2/03-194 N2590 Freytag, Asmus (2003-06-09), Additional Mathematical and Letterlike Characters
L2/04-196 N2653 (pdf, doc) Umamaheswaran, V. S. (2004-06-04), "RESOLUTION M44.5 (Additions of individual characters), item g", Unconfirmed minutes of WG 2 meeting 44
5.0 U+20EC..20EF 4 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
5.1 U+20F0 1 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
  1. ^ Proposed code points and characters names may differ from final code points and names
  2. ^ a b Refer to the history section of the Miscellaneous Mathematical Symbols-B block for additional math-related documents

References

  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.
  3. ^ "3.8: Block-by-Block Charts" (PDF). The Unicode Standard. version 1.0. Unicode Consortium.