符號用組合附加符號

符號用組合附加符號
Combining Diacritical Marks for Symbols
符號用組合附加符號; Combining Diacritical Marks for Symbols
範圍	U+20D0..U+20FF; （48個碼位）
平面	基本多文種平面（BMP）
文字	繼承
已分配	33個碼位
未分配	15個保留碼位
統一碼版本歷史
1.0.0	18 (+18)
3.0	20 (+2)
3.2	27 (+7)
4.1	28 (+1)
5.0	32 (+4)
5.1	33 (+1)
碼表
	點擊此處
	註釋：

符號用組合附加符號是一個位於基本多文種平面的Unicode區塊，主要收錄了修饰符号用的箭頭、圓點、包圍和覆蓋樣式等組合字符。

在1.0版本中，本區塊的名稱為符號用附加符號（Diacritical Marks for Symbols）。^[3]

區塊

符號用組合附加符號 Combining Diacritical Marks for Symbols^[1]^[2] Unicode Consortium 官方碼表 (PDF)
	0	1	2	3	4	5	6	7	8	9	A	B	C	D	E	F
U+20Dx	◌⃐	◌⃑	◌⃒	◌⃓	◌⃔	◌⃕	◌⃖	◌⃗	◌⃘	◌⃙	◌⃚	◌⃛	◌⃜	◌⃝	◌⃞	◌⃟
U+20Ex	◌⃠	◌⃡	◌⃢	◌⃣	◌⃤	◌⃥	◌⃦	◌⃧	◌⃨	◌⃩	◌⃪	◌⃫	◌⃬	◌⃭	◌⃮	◌⃯
U+20Fx	◌⃰
注释 1.^ 依据 Unicode 14.0 2.^ 灰色区域为未分配码位

歷史

以下的Unicode相關檔案記錄了本區塊字符的提案及定稿。

版本	最終碼位^[a]	碼位数	L2（英语：International Committee for Information Technology Standards） ID	WG2（英语：ISO/IEC JTC 1/SC 2） ID	文檔
1.0.0	U+20D0..20E1	18			（待定）
			L2/06-181		Anderson, Deborah, Responses to the UTC regarding L2/06-042, Proposal for Additional Cyrillic Characters, 2006-05-08
			L2/06-108		Moore, Lisa, Action item 107-A94, UTC #107 Minutes, 2006-05-25, Add an annotation to the names list for U+20DD COMBINING ENCLOSING CIRCLE.
3.0	U+20E2..20E3	2	L2/97-206	N1668 （页面存档备份，存于互联网档案馆）	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, 3.C.3. Cartouche proposal for keyboard symbols, Preliminary Minutes - UTC #74 & L2 #171, Mountain View, CA - December 5, 1997, 1998-02-24
			L2/98-082	N1668R (doc)	Joint proposal to encode enclosing screen and keycap, 1998-03-23
			L2/98-286	N1703 （页面存档备份，存于互联网档案馆）	Umamaheswaran, V. S.; Ksar, Mike, 8.4, Unconfirmed Meeting Minutes, WG 2 Meeting #34, Redmond, WA, USA; 1998-03-16--20, 1998-07-02
			L2/98-321	N1905 （页面存档备份，存于互联网档案馆）	Revised text of 10646-1/FPDAM 23, AMENDMENT 23: Bopomofo Extended and other characters, 1998-10-22
			L2/99-010	N1903 (pdf, html （页面存档备份，存于互联网档案馆）, doc （页面存档备份，存于互联网档案馆）)	Umamaheswaran, V. S., 6.7.6, Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25, 1998-12-30
			L2/17-086		Burge, Jeremy; et al, Add ZWJ, VS-16, Keycaps & Tags to Emoji_Component, 2017-03-27
			L2/17-103		Moore, Lisa, E.1.7 Add ZWJ, VS-16, Keycaps & Tags to Emoji_Component, UTC #151 Minutes, 2017-05-18
3.2	U+20E4	1	L2/98-056		McGowan, Rick; Sampson, Geoffrey, Triangular Overlay Character, 1998-02-23
			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 （页面存档备份，存于互联网档案馆）	McGowan, Rick, Request for Addition of Triangular Overlay Character, 1998-12-07
			L2/99-077.1	N1975 （页面存档备份，存于互联网档案馆）	Irish Comments on SC 2 N 3210, 1999-01-20
			L2/98-419 (pdf, doc （页面存档备份，存于互联网档案馆）)		Aliprand, Joan, Enclosing Triangle, Approved Minutes -- UTC #78 & NCITS Subgroup L2 # 175 Joint Meeting, San Jose, CA -- December 1-4, 1998, 1999-02-05
			L2/99-176R		Moore, Lisa, Motion 80-M20, Minutes from the joint UTC/L2 meeting in Seattle, June 8-10, 1999, 1999-11-04
			L2/99-232	N2003 （页面存档备份，存于互联网档案馆）	Umamaheswaran, V. S., 7.2.1.2, Minutes of WG 2 meeting 36, Fukuoka, Japan, 1999-03-09--15, 1999-08-03
	U+20E5..20E8	4	L2/00-119^[b]	N2191R （页面存档备份，存于互联网档案馆）	Whistler, Ken; Freytag, Asmus, Encoding Additional Mathematical Symbols in Unicode, 2000-04-19
			L2/00-234	N2203 (rtf, txt （页面存档备份，存于互联网档案馆）)	Umamaheswaran, V. S., 8.18, Minutes from the SC2/WG2 meeting in Beijing, 2000-03-21 -- 24, 2000-07-21
			L2/00-115R2		Moore, Lisa, Motion 83-M11, Minutes Of UTC Meeting #83, 2000-08-08
	U+20E9..20EA	2	L2/99-010	N1903 (pdf, html （页面存档备份，存于互联网档案馆）, doc （页面存档备份，存于互联网档案馆）)	Umamaheswaran, V. S., 6.7.6, Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25, 1998-12-30
			L2/01-142^[b]	N2336 （页面存档备份，存于互联网档案馆）	Beeton, Barbara; Freytag, Asmus; Ion, Patrick, Additional Mathematical Symbols, 2001-04-02
			L2/01-156	N2356 （页面存档备份，存于互联网档案馆）	Freytag, Asmus, Additional Mathematical Characters (Draft 10), 2001-04-03
			L2/01-344	N2353 (pdf, doc （页面存档备份，存于互联网档案馆）)	Umamaheswaran, V. S., 7.7 Mathematical Symbols, Minutes from SC2/WG2 meeting #40 -- Mountain View, April 2001, 2001-09-09
4.1	U+20EB	1	L2/03-194	N2590 （页面存档备份，存于互联网档案馆）	Freytag, Asmus, Additional Mathematical and Letterlike Characters, 2003-06-09
4.1	U+20EB	1	L2/04-196	N2653 (pdf, doc （页面存档备份，存于互联网档案馆）)	Umamaheswaran, V. S., RESOLUTION M44.5 (Additions of individual characters), item g, Unconfirmed minutes of WG 2 meeting 44, 2004-06-04
5.0	U+20EC..20EF	4	L2/04-406		Freytag, Asmus; Sargent, Murray; Beeton, Barbara; Carlisle, David, Progress report on Mathematical Symbols, 2004-11-15
5.0	U+20EC..20EF	4	L2/04-410		Freytag, Asmus, Twenty six mathematical characters, 2004-11-18
5.1	U+20F0	1	L2/07-011R	N3198R （页面存档备份，存于互联网档案馆）	Freytag, Asmus; Beeton, Barbara; Ion, Patrick; Sargent, Murray; Carlisle, David; Pournader, Roozbeh, 29 Additional Mathematical and Symbol Characters, 2007-01-15
			L2/07-015		Moore, Lisa, Mathematical Characters and Symbols (C.4), UTC #110 Minutes, 2007-02-08
			L2/07-268	N3253 (pdf, doc （页面存档备份，存于互联网档案馆）)	Umamaheswaran, V. S., M50.16, Unconfirmed minutes of WG 2 meeting 50, Frankfurt-am-Main, Germany; 2007-04-24/27, 2007-07-26
^ 提案中建議的碼位及名稱可能與最終結果不同。 ^ ^2.0 ^2.1 另見雜項數學符號-B區塊的歷史章節，了解更多數學相關的文件。

參閱

註釋

^ Unicode character database. The Unicode Standard. [2016-07-09]. （原始内容存档于2017-09-25）.
^ Enumerated Versions of The Unicode Standard. The Unicode Standard. [2016-07-09]. （原始内容存档于2016-06-29）.
^ 3.8: Block-by-Block Charts (PDF). The Unicode Standard. version 1.0. Unicode Consortium. [2021-03-01]. （原始内容存档 (PDF)于2021-02-11）.

[final-4] 提案中建議的碼位及名稱可能與最終結果不同。

[mathdocs-5] 2.0 ^2.1 另見雜項數學符號-B區塊的歷史章節，了解更多數學相關的文件。

[1] Unicode character database. The Unicode Standard. [2016-07-09]. （原始内容存档于2017-09-25）.

[2] Enumerated Versions of The Unicode Standard. The Unicode Standard. [2016-07-09]. （原始内容存档于2016-06-29）.

[3] 3.8: Block-by-Block Charts (PDF). The Unicode Standard. version 1.0. Unicode Consortium. [2021-03-01]. （原始内容存档 (PDF)于2021-02-11）.

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