Home U+2200 to U+22FF Mathematical Operators
Glyph for U+221E
Source: Noto Sans Math

U+221E Infinity

U+221E was added in Unicode version 1.1 in 1993. It belongs to the block U+2200 to U+22FF Mathematical Operators in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Math Symbol and is commonly used, that is, in no specific script.

The glyph is not a composition. Its width in East Asian texts is determined by its context. It can be displayed wide or narrow. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. If its East Asian Width is “narrow”, U+221E forms a word with similar characters, which prevents a line break inside it. Otherwise it allows line breaks around it, except in some numeric contexts. The glyph can be confused with one other glyph.

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

Wikipedia ma następujące informacje na temat tej współrzędnej kodowej:

Nieskończoność (symbol: ∞) – byt nieograniczony (w sensie wielkości bądź ilości), który przyjęło się oznaczać za pomocą znaku ∞, podobnego do „przewróconej ósemki” (lemniskata).

Reprezentacje

System Reprezentacje
Nº 8734
UTF-8 E2 88 9E
UTF-16 22 1E
UTF-32 00 00 22 1E
Adres URL cytowany %E2%88%9E
HTML hex reference ∞
Błędne windows-1252 Mojibake ∞
HTML named entity ∞
Kodowanie: EUC-KR (hex bajtów) A1 C4
Kodowanie: JIS0208 (hex bajtów) A1 E7
Kodowanie: MACINTOSH (hex bajtów) B0
Kodowanie: X-MAC-CYRILLIC (hex bajtów) B0
LATEX \infty
AGL: Latin-2 infinity
AGL: Latin-3 infinity
AGL: Latin-4 infinity
AGL: Latin-5 infinity
Adobe Glyph List infinity
dwuznak 00

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Kompletny opis

Właściwość Wartość
Age (age) 1.1 (1993)
Unicode Name (na) INFINITY
Unicode 1 Name (na1) —
Block (blk) Mathematical Operators
General Category (gc) Math Symbol
Script (sc) Common
Bidirectional Category (bc) Other Neutral
Combining Class (ccc) Not Reordered
Decomposition Type (dt) none
Decomposition Mapping (dm) Glyph for U+221E Infinity
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) Glyph for U+221E Infinity
Lowercase Mapping (lc) Glyph for U+221E Infinity
Uppercase (Upper) ✘
Simple Uppercase Mapping (suc) Glyph for U+221E Infinity
Uppercase Mapping (uc) Glyph for U+221E Infinity
Simple Titlecase Mapping (stc) Glyph for U+221E Infinity
Titlecase Mapping (tc) Glyph for U+221E Infinity
Case Folding (cf) Glyph for U+221E Infinity
ASCII Hex Digit (AHex) ✘
Alphabetic (Alpha) ✘
Bidi Control (Bidi_C) ✘
Bidi Mirrored (Bidi_M) ✘
Composition Exclusion (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) ✘
Full Composition Exclusion (Comp_Ex) ✘
Default Ignorable Code Point (DI) ✘
Dash (Dash) ✘
Deprecated (Dep) ✘
Diacritic (Dia) ✘
Emoji Modifier Base (EBase) ✘
Emoji Component (EComp) ✘
Emoji Modifier (EMod) ✘
Emoji Presentation (EPres) ✘
Emoji (Emoji) ✘
Extender (Ext) ✘
Extended Pictographic (ExtPict) ✘
FC NFKC Closure (FC_NFKC) Glyph for U+221E Infinity
Grapheme Cluster Break (GCB) Any
Grapheme Base (Gr_Base) ✔
Grapheme Extend (Gr_Ext) ✘
Grapheme Link (Gr_Link) ✘
Hex Digit (Hex) ✘
Hyphen (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) 1
ID_Compat_Math_Start (ID_Compat_Math_Start) 1
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) Yes
NFD Quick Check (NFD_QC) Yes
NFKC Casefold (NFKC_CF) Glyph for U+221E Infinity
NFKC Quick Check (NFKC_QC) Yes
NFKC_SCF (NFKC_SCF) Glyph for U+221E Infinity
NFKD Quick Check (NFKD_QC) Yes
Other Alphabetic (OAlpha) ✘
Other Default Ignorable Code Point (ODI) ✘
Other Grapheme Extend (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) ✘
Quotation Mark (QMark) ✘
Regional Indicator (RI) ✘
Radical (Radical) ✘
Sentence Break (SB) Other
Soft Dotted (SD) ✘
Sentence Terminal (STerm) ✘
Terminal Punctuation (Term) ✘
Unified Ideograph (UIdeo) ✘
Variation Selector (VS) ✘
Word Break (WB) Other
White Space (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) Glyph for U+221E Infinity
Bidi Paired Bracket Type (bpt) None
East Asian Width (ea) ambiguous
Hangul Syllable Type (hst) Not Applicable
ISO 10646 Comment (isc) —
Joining Group (jg) No_Joining_Group
Joining Type (jt) Non Joining
Line Break (lb) Ambiguous (Alphabetic or Ideographic)
Numeric Type (nt) none
Wartość liczbowa (nv) not a number
Simple Case Folding (scf) Glyph for U+221E Infinity
Script Extension (scx)
Vertical Orientation (vo) U