Start: go to the homepage U+2190 bis U+21FF Arrows
Zeichen für U+21A3
Quelle: Noto Sans Math

U+21A3 Rightwards Arrow with Tail

U+21A3 wurde in Version 1.1 in 1993 zu Unicode hinzugefügt. Er gehört zum Block U+2190 bis U+21FF Arrows in der U+0000 bis U+FFFF Basic Multilingual Plane.

Dieses Zeichen ist ein Math Symbol und wird allgemein verwendet, das heißt, in keiner speziellen Schrift. Das Schriftzeichen ist auch bekannt als z notation total injection.

Das Zeichen ist keine Zusammensetzung. Es hat keine zugewiesene Weite in ostasiatischen Texten. In bidirektionalem Text handelt es als Other Neutral. Bei einem Richtungswechsel wird es nicht gespiegelt. Das Wort, das U+21A3 mit ähnlichen Zeichen bildet, verbietet in sich Zeilenumbrüche.

Das CLDR-Projekt bezeichnet dieses Zeichen mit „Pfeilschwanz nach rechts“ für die Verwendung in Screenreader-Software.

Die Wikipedia hat die folgende Information zu diesem Codepunkt:

In mathematics, an injective function (also known as injection, or one-to-one function ) is a function f that maps distinct elements of its domain to distinct elements; that is, x1x2 implies f(x1) ≠ f(x2). (Equivalently, f(x1) = f(x2) implies x1 = x2 in the equivalent contrapositive statement.) In other words, every element of the function's codomain is the image of at most one element of its domain. The term one-to-one function must not be confused with one-to-one correspondence that refers to bijective functions, which are functions such that each element in the codomain is an image of exactly one element in the domain.

A homomorphism between algebraic structures is a function that is compatible with the operations of the structures. For all common algebraic structures, and, in particular for vector spaces, an injective homomorphism is also called a monomorphism. However, in the more general context of category theory, the definition of a monomorphism differs from that of an injective homomorphism. This is thus a theorem that they are equivalent for algebraic structures; see Homomorphism § Monomorphism for more details.

A function f that is not injective is sometimes called many-to-one.

Darstellungen

System Darstellung
Nr. 8611
UTF-8 E2 86 A3
UTF-16 21 A3
UTF-32 00 00 21 A3
URL-kodiert %E2%86%A3
HTML hex reference ↣
Falsches windows-1252-Mojibake ↣
HTML named entity ↣
HTML named entity ↣
Alias z notation total injection
LATEX \rightarrowtail

Anderswo

Vollständiger Eintrag

Eigenschaft Wert
Alter (age) 1.1 (1993)
Unicode-Name (na) RIGHTWARDS ARROW WITH TAIL
Unicode-1-Name (na1) RIGHT ARROW WITH TAIL
Block (blk) Arrows
Allgemeine Kategorie (gc) Math Symbol
Schrift (sc) Common
Bidirectional Category (bc) Other Neutral
Combining Class (ccc) Not Reordered
Dekompositionstyp (dt) none
Decomposition Mapping (dm) Zeichen für U+21A3 Rightwards Arrow with Tail
Kleinbuchstabe (Lower)
Simple Lowercase Mapping (slc) Zeichen für U+21A3 Rightwards Arrow with Tail
Lowercase Mapping (lc) Zeichen für U+21A3 Rightwards Arrow with Tail
Großbuchstabe (Upper)
Simple Uppercase Mapping (suc) Zeichen für U+21A3 Rightwards Arrow with Tail
Uppercase Mapping (uc) Zeichen für U+21A3 Rightwards Arrow with Tail
Simple Titlecase Mapping (stc) Zeichen für U+21A3 Rightwards Arrow with Tail
Titlecase Mapping (tc) Zeichen für U+21A3 Rightwards Arrow with Tail
Case Folding (cf) Zeichen für U+21A3 Rightwards Arrow with Tail
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi-Kontrollzeichen (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)
Veraltet (Dep)
Diakritisch (Dia)
Emoji Modifier Base (EBase)
Emoji Component (EComp)
Emoji Modifier (EMod)
Emoji-Darstellung (EPres)
Emoji (Emoji)
Extender (Ext)
Extended Pictographic (ExtPict)
FC NFKC Closure (FC_NFKC) Zeichen für U+21A3 Rightwards Arrow with Tail
Grapheme Cluster Break (GCB) Egal
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) 0
ID_Compat_Math_Start (ID_Compat_Math_Start) 0
Ideogramm (Ideo)
InCB (InCB) None
Indic Mantra Category (InMC)
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
Jamo Short Name (JSN)
Verbindungskontrollzeichen (Join_C)
Logische Reihenfolgenausnahme (LOE)
Math (Math)
Nicht-Zeichen-Codepunkt (NChar)
NFC Quick Check (NFC_QC) Ja
NFD Quick Check (NFD_QC) Ja
NFKC Casefold (NFKC_CF) Zeichen für U+21A3 Rightwards Arrow with Tail
NFKC Quick Check (NFKC_QC) Ja
NFKC_SCF (NFKC_SCF) Zeichen für U+21A3 Rightwards Arrow with Tail
NFKD Quick Check (NFKD_QC) Ja
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) Andere
Soft Dotted (SD)
Sentence Terminal (STerm)
Terminal Punctuation (Term)
Unified Ideograph (UIdeo)
Variation Selector (VS)
Word Break (WB) Andere
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) Zeichen für U+21A3 Rightwards Arrow with Tail
Bidi Paired Bracket Type (bpt) None
Ostasiatische Weite (ea) neutral
Hangul Syllable Type (hst) Nicht anwendbar
ISO 10646 Comment (isc)
Joining Group (jg) No_Joining_Group
Joining Type (jt) Non Joining
Line Break (lb) Alphabetic
Numerischer Typ (nt) none
Numerischer Wert (nv) keine Nummer
Simple Case Folding (scf) Zeichen für U+21A3 Rightwards Arrow with Tail
Schrifterweiterung (scx)
Vertical Orientation (vo) R