Start: go to the homepage U+27C0 bis U+27EF Miscellaneous Mathematical Symbols-A
Zeichen für U+27DF
Quelle: Noto Sans Math

U+27DF Up Tack with Circle Above

U+27DF wurde in Version 3.2 in 2002 zu Unicode hinzugefügt. Er gehört zum Block U+27C0 bis U+27EF Miscellaneous Mathematical Symbols-A 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 radial component.

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+27DF mit ähnlichen Zeichen bildet, verbietet in sich Zeilenumbrüche.

Die Wikipedia hat die folgende Information zu diesem Codepunkt:

The up tack or falsum (, ot in LaTeX, U+22A5 in Unicode) is a constant symbol used to represent:

  • The truth value 'false', or a logical constant denoting a proposition in logic that is always false (often called "falsum" or "absurdum").
  • The bottom element in wheel theory and lattice theory, which also represents absurdum when used for logical semantics
  • The bottom type in type theory, which is the bottom element in the subtype relation. This may coincide with the empty type, which represents absurdum under the Curry–Howard correspondence
  • The "undefined value" in quantum physics interpretations that reject counterfactual definiteness, as in (r0,⊥)

as well as

  • Mixed radix decoding in the APL programming language

The glyph of the up tack appears as an upside-down tee symbol, and as such is sometimes called eet (the word "tee" in reverse). Tee plays a complementary or dual role in many of these theories.

The similar-looking perpendicular symbol (, perp in LaTeX, U+27C2 in Unicode) is a binary relation symbol used to represent:

  • Perpendicularity of lines in geometry
  • Orthogonality in linear algebra
  • Independence of random variables in probability theory
  • Coprimality in number theory

The double tack up symbol (, U+2AEB in Unicode) is a binary relation symbol used to represent:

  • Conditional independence of random variables in probability theory

Darstellungen

System Darstellung
Nr. 10207
UTF-8 E2 9F 9F
UTF-16 27 DF
UTF-32 00 00 27 DF
URL-kodiert %E2%9F%9F
HTML hex reference ⟟
Falsches windows-1252-Mojibake ⟟
Alias radial component

Anderswo

Vollständiger Eintrag

Eigenschaft Wert
Alter (age) 3.2 (2002)
Unicode-Name (na) UP TACK WITH CIRCLE ABOVE
Unicode-1-Name (na1)
Block (blk) Miscellaneous Mathematical Symbols-B
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+27DF Up Tack with Circle Above
Kleinbuchstabe (Lower)
Simple Lowercase Mapping (slc) Zeichen für U+27DF Up Tack with Circle Above
Lowercase Mapping (lc) Zeichen für U+27DF Up Tack with Circle Above
Großbuchstabe (Upper)
Simple Uppercase Mapping (suc) Zeichen für U+27DF Up Tack with Circle Above
Uppercase Mapping (uc) Zeichen für U+27DF Up Tack with Circle Above
Simple Titlecase Mapping (stc) Zeichen für U+27DF Up Tack with Circle Above
Titlecase Mapping (tc) Zeichen für U+27DF Up Tack with Circle Above
Case Folding (cf) Zeichen für U+27DF Up Tack with Circle Above
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+27DF Up Tack with Circle Above
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+27DF Up Tack with Circle Above
NFKC Quick Check (NFKC_QC) Ja
NFKC_SCF (NFKC_SCF) Zeichen für U+27DF Up Tack with Circle Above
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+27DF Up Tack with Circle Above
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+27DF Up Tack with Circle Above
Schrifterweiterung (scx)
Vertical Orientation (vo) R