Fuente: Noto Sans Math

U+2213 Minus-Or-Plus Sign

U+2213 was added in Unicode version 1.1 in 1993. It belongs to the block U+2200 para U+22FF Mathematical Operators in the U+0000 para U+FFFF Basic Multilingual Plane.

This character is a Puntuación matemática and is commonly used, that is, in no specific script.

The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written as end of a European number, e.g., a currency symbol, from left to right. When changing direction it is not mirrored. U+2213 prohibits a line break after it, if it is followed by a number.

The CLDR project calls this character “menos o más” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: más menos.

El Wikipedia tiene la siguiente información acerca de este punto de código:

El signo más menos (±) es un símbolo matemático que se emplea a menudo para indicar la precisión de una aproximación, o bien para denotar abreviadamente un valor que puede ser tanto positivo como negativo. En matemáticas, el signo ± indica que hay dos respuestas posibles: una positiva y otra negativa. En la mayoría de ciencias experimentales, indica todo un intervalo de valores que puede tomar una lectura.
Nótese que el signo ± no tiene el significado de «aproximadamente».

Representaciones

Sistema	Representación
N.º	8723
UTF-8	E2 88 93
UTF-16	22 13
UTF-32	00 00 22 13
URL-Quoted	%E2%88%93
HTML hex reference	∓
Mojibake mal de windows-1252	âˆ“
HTML named entity	&MinusPlus;
HTML named entity	&mnplus;
HTML named entity	&mp;
L^AT_EX	\mp
Adobe Glyph List	minusplus
dígrafo	-+

Otros sitios

Registro completo

Propiedad	Valor
Antigüedad (age)	1.1 (1993)
Nombre Unicode (na)	MINUS-OR-PLUS SIGN
Nombre Unicode 1 (na1)	—
Block (blk)	Mathematical Operators
Categoría general (gc)	Puntuación matemática
Script (sc)	Common
Categoría de bidireccionalidad (bc)	European Terminator
Combining Class (ccc)	Not Reordered
Tipo de descomposición (dt)	none
Decomposition Mapping (dm)	Minus-Or-Plus Sign
Minúscula (Lower)	✘
Simple Lowercase Mapping (slc)	Minus-Or-Plus Sign
Lowercase Mapping (lc)	Minus-Or-Plus Sign
Mayúscula (Upper)	✘
Simple Uppercase Mapping (suc)	Minus-Or-Plus Sign
Uppercase Mapping (uc)	Minus-Or-Plus Sign
Simple Titlecase Mapping (stc)	Minus-Or-Plus Sign
Titlecase Mapping (tc)	Minus-Or-Plus Sign
Case Folding (cf)	Minus-Or-Plus Sign
ASCII Hex Digit (AHex)	✘
Alphabetic (Alpha)	✘
Bidi Control (Bidi_C)	✘
Bidi Mirrored (Bidi_M)	✘
Exclusión de descomposición (CE)	✘
Case Ignorable (CI)	✘
Changes When Casefolded (CWCF)	✘
Changes When Casemapped (CWCM)	✘
Changes When NFKC Casefolded (CWKCF)	✘
Changes When Lowercased (CWL)	✘
Changes When Titlecased (CWT)	✘
Changes When Uppercased (CWU)	✘
Cased (Cased)	✘
Exclusión de composición completa (Comp_Ex)	✘
Default Ignorable Code Point (DI)	✘
Raya (Dash)	✘
Deprecated (Dep)	✘
Diacrítico (Dia)	✘
Base de modificador de emoyi (EBase)	✘
Componente de emoyi (EComp)	✘
Modificador de emoyi (EMod)	✘
Presentación de emoyi (EPres)	✘
Emoyi (Emoji)	✘
Extender (Ext)	✘
Extended Pictographic (ExtPict)	✘
FC NFKC Closure (FC_NFKC)	Minus-Or-Plus Sign
Grapheme Cluster Break (GCB)	Any
Base de grafema (Gr_Base)	✔
Extensión de grafema (Gr_Ext)	✘
Enlace de grafema (Gr_Link)	✘
Hex Digit (Hex)	✘
Guion (Hyphen)	✘
ID Continue (IDC)	✘
ID Start (IDS)	✘
IDS Binary Operator (IDSB)	✘
IDS Trinary Operator and (IDST)	✘
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Math (Math)	✔
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Sí
NFD Quick Check (NFD_QC)	Sí
NFKC Casefold (NFKC_CF)	Minus-Or-Plus Sign
NFKC Quick Check (NFKC_QC)	Sí
NFKC_SCF (NFKC_SCF)	Minus-Or-Plus Sign
NFKD Quick Check (NFKD_QC)	Sí
Other Alphabetic (OAlpha)	✘
Other Default Ignorable Code Point (ODI)	✘
Otra extensión de grafema (OGr_Ext)	✘
Other ID Continue (OIDC)	✘
Other ID Start (OIDS)	✘
Other Lowercase (OLower)	✘
Other Math (OMath)	✘
Other Uppercase (OUpper)	✘
Prepended Concatenation Mark (PCM)	✘
Pattern Syntax (Pat_Syn)	✔
Pattern White Space (Pat_WS)	✘
Comilla (QMark)	✘
Indicador regional (RI)	✘
Radical (Radical)	✘
Salto de oración (SB)	Other
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Ideograma unificado (UIdeo)	✘
Selector de variación (VS)	✘
Salto de palabra (WB)	Other
Espacio en blanco (WSpace)	✘
XID Continue (XIDC)	✘
XID Start (XIDS)	✘
Expands On NFC (XO_NFC)	✘
Expands On NFD (XO_NFD)	✘
Expands On NFKC (XO_NFKC)	✘
Expands On NFKD (XO_NFKD)	✘
Bidi Paired Bracket (bpb)	Minus-Or-Plus Sign
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	neutral
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Prefix Numeric
Numeric Type (nt)	none
Valor numérico (nv)	not a number
Simple Case Folding (scf)	Minus-Or-Plus Sign
Script Extension (scx)
Orientación vertical (vo)	R