Combining Diacritical Marks for Symbols
{{also|Combining Diacritical Marks|l1=Combining Diacritical Marks (Unicode block)|Combining Diacritical Marks Supplement|l2=Combining Diacritical Marks Supplement (Unicode block)|Combining Diacritical Marks Extended|l3=Combining Diacritical Marks Extended (Unicode block)|Combining Half Marks|l4=Combining Half Marks (Unicode block)}}
{{for|a list of all mathematical symbols encoded in Unicode|Mathematical operators and symbols in Unicode}}
{{Infobox Unicode block
|blockname = Combining Diacritical Marks for Symbols
|rangestart = 20D0
|rangeend = 20FF
|script1 = Inherited
|1_0_0 = 18
|3_0 = 2
|3_2 = 7
|4_1 = 1
|5_0 = 4
|5_1 = 1
|note = {{cite web|url=https://www.unicode.org/ucd/|title=Unicode character database|work=The Unicode Standard|accessdate=2023-07-26}}{{cite web|url=https://www.unicode.org/versions/enumeratedversions.html|title=Enumerated Versions of The Unicode Standard|work=The Unicode Standard|accessdate=2023-07-26}}
}}
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.{{cite web |url=https://www.unicode.org/versions/Unicode1.0.0/CodeCharts2.pdf |work=The Unicode Standard |version=version 1.0 |title=3.8: Block-by-Block Charts |publisher=Unicode Consortium}}
Block
{{Unicode chart Combining Diacritical Marks for Symbols}}
History
The following Unicode-related documents record the purpose and process of defining specific characters in the Combining Diacritical Marks for Symbols block:
{{sticky header}}
| class="wikitable collapsible sticky-header" | |||||
| Version | {{nobr|Final code points}} | Count | L2 ID | WG2 ID | Document |
|---|---|---|---|---|---|
| rowspan="3" | 1.0.0 | rowspan="3" | U+20D0..20E1 | rowspan="3" | 18 | (to be determined) | ||
| {{nobr|[https://www.unicode.org/L2/L2006/06181-cyrillic-info.pdf L2/06-181]}} | {{Citation|title=Responses to the UTC regarding L2/06-042, Proposal for Additional Cyrillic Characters|date=2006-05-08|first=Deborah|last=Anderson|ref=none|section=2|quote=Please add an annotation to U+20DD saying that it can be used as the Cyrillic ten thousands sign}} | ||||
| {{nobr|[https://www.unicode.org/L2/L2006/06108.htm L2/06-108]}} | {{Citation|title=UTC #107 Minutes|date=2006-05-25|first=Lisa|last=Moore|ref=none|section=Action item 107-A94|quote=Add an annotation to the names list for U+20DD COMBINING ENCLOSING CIRCLE.}} | ||||
| rowspan="9" | 3.0 | rowspan="9" | U+20E2..20E3 | rowspan="9" | 2 | {{nobr|L2/97-206}} | [https://web.archive.org/web/20200215052615/http://std.dkuug.dk/jtc1/sc2/wg2/docs/n1668.doc N1668] | {{Citation|title=Proposal to encode two symbols|date=1997-08-05|ref=none}} |
| {{nobr|L2/98-007}} | {{nobr|[https://web.archive.org/web/20200215052615/http://std.dkuug.dk/jtc1/sc2/wg2/docs/n1668r.pdf N1668R (pdf)]}} | {{Citation|title=Joint proposal to encode two symbols|date=1998-02-13|ref=none}} | |||
| {{nobr|[https://www.unicode.org/L2/L1998/98039.pdf L2/98-039]}} | {{Citation|title=Preliminary Minutes - UTC #74 & L2 #171, Mountain View, CA - December 5, 1997|date=1998-02-24|first1=Joan|last1=Aliprand|first2=Arnold|last2=Winkler|ref=none|section=3.C.3. Cartouche proposal for keyboard symbols}} | ||||
| {{nobr|L2/98-082}} | {{nobr|[https://web.archive.org/web/20200215052615/http://std.dkuug.dk/jtc1/sc2/wg2/docs/n1668r.doc N1668R (doc)]}} | {{Citation|title=Joint proposal to encode enclosing screen and keycap|date=1998-03-23|ref=none}} | |||
| {{nobr|L2/98-286}} | [https://web.archive.org/web/20200215052615/http://std.dkuug.dk/jtc1/sc2/wg2/docs/n1703w97.doc N1703] | {{Citation|title=Unconfirmed Meeting Minutes, WG 2 Meeting #34, Redmond, WA, USA; 1998-03-16--20|date=1998-07-02|first1=V. S.|last1=Umamaheswaran|first2=Mike|last2=Ksar|ref=none|section=8.4}} | |||
| {{nobr|[https://www.unicode.org/L2/L1998/02n3194.pdf L2/98-321]}} | [https://web.archive.org/web/20200215052615/http://std.dkuug.dk/jtc1/sc2/wg2/docs/n1905_02n3194_fpdam23_bopomofo.pdf N1905] | {{Citation|title=Revised text of 10646-1/FPDAM 23, AMENDMENT 23: Bopomofo Extended and other characters|date=1998-10-22|ref=none}} | |||
| {{nobr|[https://www.unicode.org/L2/L1999/n1903.rtf L2/99-010]}} | {{nobr|[https://www.unicode.org/wg2/docs/n1903.pdf N1903 (pdf],}} [https://www.unicode.org/wg2/docs/n1903.htm html], [https://www.unicode.org/wg2/docs/n1903w97.doc doc]) | {{Citation|title=Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25|date=1998-12-30|first=V. S.|last=Umamaheswaran|ref=none|section=6.7.6}} | |||
| {{nobr|[https://www.unicode.org/L2/L2017/17086-vs16-keycaps-emoji.pdf L2/17-086]}} | {{Citation|title=Add ZWJ, VS-16, Keycaps & Tags to Emoji_Component|date=2017-03-27|first1=Jeremy|last1=Burge|author-link1=Jeremy Burge|display-authors=etal|ref=none}} | ||||
| {{nobr|[https://www.unicode.org/L2/L2017/17103.htm L2/17-103]}} | {{Citation|title=UTC #151 Minutes|date=2017-05-18|first=Lisa|last=Moore|ref=none|section=E.1.7 Add ZWJ, VS-16, Keycaps & Tags to Emoji_Component}} | ||||
| rowspan="14" | 3.2 | rowspan="7" | U+20E4 | rowspan="7" | 1 | {{nobr|[https://www.unicode.org/L2/L1998/98056.pdf L2/98-056]}} | {{Citation|title=Triangular Overlay Character|date=1998-02-23|first1=Rick|last1=McGowan|first2=Geoffrey|last2=Sampson|author-link2=Geoffrey Sampson|ref=none}} | |
| {{nobr|[https://www.unicode.org/L2/L1998/98070.pdf L2/98-070]}} | {{Citation|title=Minutes of the joint UTC and L2 meeting from the meeting in Cupertino, February 25-27, 1998|first1=Joan|last1=Aliprand|first2=Arnold|last2=Winkler|ref=none|section=4.C.1.}} | ||||
| {{nobr|[https://www.unicode.org/L2/L1999/n1941.pdf L2/99-021]}} | [https://www.unicode.org/wg2/docs/n1941.pdf N1941] | {{Citation|title=Request for Addition of Triangular Overlay Character|date=1998-12-07|first=Rick|last=McGowan|ref=none}} | |||
| {{nobr|[https://www.unicode.org/L2/L1999/02n32521.pdf L2/99-077.1]}} | [https://www.unicode.org/wg2/docs/n1975.pdf N1975] | {{Citation|title=Irish Comments on SC 2 N 3210|date=1999-01-20|ref=none}} | |||
| {{nobr|[https://www.unicode.org/L2/L1998/98419.pdf L2/98-419 (pdf],}} [https://www.unicode.org/L2/L1998/98419.doc doc]) | {{Citation|title=Approved Minutes -- UTC #78 & NCITS Subgroup L2 # 175 Joint Meeting, San Jose, CA -- December 1-4, 1998|date=1999-02-05|first=Joan|last=Aliprand|ref=none|section=Enclosing Triangle}} | ||||
| {{nobr|[https://www.unicode.org/L2/L1999/99176.htm L2/99-176R]}} | {{Citation|title=Minutes from the joint UTC/L2 meeting in Seattle, June 8-10, 1999|date=1999-11-04|first=Lisa|last=Moore|ref=none|section=Motion 80-M20}} | ||||
| {{nobr|[https://www.unicode.org/L2/L1999/N2003.pdf L2/99-232]}} | [https://www.unicode.org/wg2/docs/n2003.pdf N2003] | {{Citation|title=Minutes of WG 2 meeting 36, Fukuoka, Japan, 1999-03-09--15|date=1999-08-03|first=V. S.|last=Umamaheswaran|ref=none|section=7.2.1.2}} | |||
| rowspan="3" | U+20E5..20E8 | rowspan="3" | 4 | {{nobr|[https://www.unicode.org/L2/L2000/00119-math.pdf L2/00-119]}} | [https://www.unicode.org/wg2/docs/n2191.pdf N2191R] | {{Citation|title=Encoding Additional Mathematical Symbols in Unicode|date=2000-04-19|first1=Ken|last1=Whistler|first2=Asmus|last2=Freytag|ref=none}} | |
| {{nobr|[https://www.unicode.org/L2/L2000/00234-n2203m.pdf L2/00-234]}} | {{nobr|[https://www.unicode.org/wg2/docs/n2203.rtf N2203 (rtf],}} [https://www.unicode.org/wg2/docs/n2203.txt txt]) | {{Citation|title=Minutes from the SC2/WG2 meeting in Beijing, 2000-03-21 -- 24|date=2000-07-21|first=V. S.|last=Umamaheswaran|ref=none|section=8.18}} | |||
| {{nobr|[https://www.unicode.org/L2/L2000/00115.htm L2/00-115R2]}} | {{Citation|title=Minutes Of UTC Meeting #83|date=2000-08-08|first=Lisa|last=Moore|ref=none|section=Motion 83-M11}} | ||||
| rowspan="4" | U+20E9..20EA | rowspan="4" | 2 | {{nobr|[https://www.unicode.org/L2/L1999/n1903.rtf L2/99-010]}} | {{nobr|[https://www.unicode.org/wg2/docs/n1903.pdf N1903 (pdf],}} [https://www.unicode.org/wg2/docs/n1903.htm html], [https://www.unicode.org/wg2/docs/n1903w97.doc doc]) | {{Citation|title=Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25|date=1998-12-30|first=V. S.|last=Umamaheswaran|ref=none|section=6.7.6}} | |
| {{nobr|[https://www.unicode.org/L2/L2001/01142-N2336-Mathadd9.pdf L2/01-142]}} | [https://www.unicode.org/wg2/docs/n2336.pdf N2336] | {{Citation|title=Additional Mathematical Symbols|date=2001-04-02|first1=Barbara|last1=Beeton|first2=Asmus|last2=Freytag|first3=Patrick|last3=Ion|author-link3=Patrick Ion|ref=none}} | |||
| {{nobr|[https://www.unicode.org/L2/L2001/01156-n2356-mathadd10.pdf L2/01-156]}} | [https://www.unicode.org/wg2/docs/n2356.pdf N2356] | {{Citation|title=Additional Mathematical Characters (Draft 10)|date=2001-04-03|first=Asmus|last=Freytag|ref=none}} | |||
| {{nobr|[https://www.unicode.org/L2/L2001/01344-n2353.pdf L2/01-344]}} | {{nobr|[https://www.unicode.org/wg2/docs/n2353.pdf N2353 (pdf],}} [https://www.unicode.org/wg2/docs/n2353.doc doc]) | {{Citation|title=Minutes from SC2/WG2 meeting #40 -- Mountain View, April 2001|date=2001-09-09|first=V. S.|last=Umamaheswaran|ref=none|section=7.7 Mathematical Symbols}} | |||
| rowspan="2" | 4.1 | rowspan="2" | U+20EB | rowspan="2" | 1 | {{nobr|[https://www.unicode.org/L2/L2003/03194-math-letterlike.pdf L2/03-194]}} | [https://www.unicode.org/wg2/docs/n2590.pdf N2590] | {{Citation|title=Additional Mathematical and Letterlike Characters|date=2003-06-09|first=Asmus|last=Freytag|ref=none}} |
| {{nobr|[https://www.unicode.org/L2/L2004/04196-n2653.pdf L2/04-196]}} | {{nobr|[https://www.unicode.org/wg2/docs/n2653.pdf N2653 (pdf],}} [https://www.unicode.org/wg2/docs/n2653.doc doc]) | {{Citation|title=Unconfirmed minutes of WG 2 meeting 44|date=2004-06-04|first=V. S.|last=Umamaheswaran|ref=none|section=RESOLUTION M44.5 (Additions of individual characters), item g}} | |||
| rowspan="2" | 5.0 | rowspan="2" | U+20EC..20EF | rowspan="2" | 4 | {{nobr|[https://www.unicode.org/L2/L2004/04406-math.pdf L2/04-406]}} | {{Citation|title=Progress report on Mathematical Symbols|date=2004-11-15|first1=Asmus|last1=Freytag|first2=Murray|last2=Sargent|first3=Barbara|last3=Beeton|first4=David|last4=Carlisle|ref=none}} | |
| {{nobr|[https://www.unicode.org/L2/L2004/04410-math.pdf L2/04-410]}} | {{Citation|title=Twenty six mathematical characters|date=2004-11-18|first=Asmus|last=Freytag|ref=none}} | ||||
| rowspan="3" | 5.1 | rowspan="3" | U+20F0 | rowspan="3" | 1 | {{nobr|[https://www.unicode.org/L2/L2007/07011-n3198-math.pdf L2/07-011R]}} | [https://www.unicode.org/wg2/docs/n3198.pdf N3198R] | {{Citation|title=29 Additional Mathematical and Symbol Characters|date=2007-01-15|first1=Asmus|last1=Freytag|first2=Barbara|last2=Beeton|first3=Patrick|last3=Ion|first4=Murray|last4=Sargent|first5=David|last5=Carlisle|first6=Roozbeh|last6=Pournader|ref=none}} |
| {{nobr|[https://www.unicode.org/L2/L2007/07015.htm L2/07-015]}} | {{Citation|title=UTC #110 Minutes|date=2007-02-08|first=Lisa|last=Moore|ref=none|section=Mathematical Characters and Symbols (C.4)}} | ||||
| {{nobr|[https://www.unicode.org/L2/L2007/07268-n3253.pdf L2/07-268]}} | {{nobr|[https://www.unicode.org/wg2/docs/n3253.pdf N3253 (pdf],}} [https://www.unicode.org/wg2/docs/n3253.doc doc]) | {{Citation|title=Unconfirmed minutes of WG 2 meeting 50, Frankfurt-am-Main, Germany; 2007-04-24/27|date=2007-07-26|first=V. S.|last=Umamaheswaran|ref=none|section=M50.16}} | |||
| class="sortbottom"
| colspan="6" | {{reflist|group=lower-alpha|refs= Proposed code points and characters names may differ from final code points and names Refer to the history section of the Miscellaneous Mathematical Symbols-B block for additional math-related documents}} |
References
{{reflist}}