Inicio U+2190 para U+21FF Arrows
Glifo para U+21A1
Fuente: Noto Sans Math

U+21A1 Downwards Two Headed Arrow

U+21A1 was added in Unicode version 1.1 in 1993. It belongs to the block U+2190 para U+21FF Arrows in the U+0000 para U+FFFF Basic Multilingual Plane.

This character is a Otro símbolo and is commonly used, that is, in no specific script. El carácter es también conocido como form feed y fast cursor down.

The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+21A1 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with one other glyph.

The CLDR project calls this character “flecha de doble punta hacia abajo” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: abajo, doble, flecha, punta.

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

A page break is a marker in an electronic document that tells the document interpreter that the content which follows is part of a new page. A page break causes a form feed to be sent to the printer during spooling of the document to the printer. Thus it is one of the elements that contributes to pagination.

Representaciones

Sistema Representación
N.º 8609
UTF-8 E2 86 A1
UTF-16 21 A1
UTF-32 00 00 21 A1
URL-Quoted %E2%86%A1
HTML hex reference ↡
Mojibake mal de windows-1252 ↡
HTML named entity ↡
alias form feed
alias fast cursor down
Codificación: GB18030 (hexadecimales bytes) 81 36 C8 31

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Confundibles

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Registro completo

Propiedad Valor
Antigüedad (age) 1.1 (1993)
Nombre Unicode (na) DOWNWARDS TWO HEADED ARROW
Nombre Unicode 1 (na1) DOWN TWO HEADED ARROW
Block (blk) Arrows
Categoría general (gc) Otro símbolo
Script (sc) Common
Categoría de bidireccionalidad (bc) Other Neutral
Combining Class (ccc) Not Reordered
Tipo de descomposición (dt) none
Decomposition Mapping (dm) Glifo para U+21A1 Downwards Two Headed Arrow
Minúscula (Lower) ✘
Simple Lowercase Mapping (slc) Glifo para U+21A1 Downwards Two Headed Arrow
Lowercase Mapping (lc) Glifo para U+21A1 Downwards Two Headed Arrow
Mayúscula (Upper) ✘
Simple Uppercase Mapping (suc) Glifo para U+21A1 Downwards Two Headed Arrow
Uppercase Mapping (uc) Glifo para U+21A1 Downwards Two Headed Arrow
Simple Titlecase Mapping (stc) Glifo para U+21A1 Downwards Two Headed Arrow
Titlecase Mapping (tc) Glifo para U+21A1 Downwards Two Headed Arrow
Case Folding (cf) Glifo para U+21A1 Downwards Two Headed Arrow
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) Glifo para U+21A1 Downwards Two Headed Arrow
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) ✘
Modifier Combining Mark (MCM) ✘
Math (Math) ✔
Noncharacter Code Point (NChar) ✘
NFC Quick Check (NFC_QC) Sí
NFD Quick Check (NFD_QC) Sí
NFKC Casefold (NFKC_CF) Glifo para U+21A1 Downwards Two Headed Arrow
NFKC Quick Check (NFKC_QC) Sí
NFKC_SCF (NFKC_SCF) Glifo para U+21A1 Downwards Two Headed Arrow
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) Glifo para U+21A1 Downwards Two Headed Arrow
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) Alphabetic
Numeric Type (nt) none
Valor numérico (nv) not a number
Simple Case Folding (scf) Glifo para U+21A1 Downwards Two Headed Arrow
Script Extension (scx)
Orientación vertical (vo) R