Home: go to the homepage U+2980 to U+29FF Miscellaneous Mathematical Symbols-B
Glyph for U+29A0
Source: Noto Sans Math

U+29A0 Spherical Angle Opening Left

U+29A0 was added in Unicode version 3.2 in 2002. It belongs to the block U+2980 to U+29FF Miscellaneous Mathematical Symbols-B 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. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is mirrored into Glyph for U+2222 Spherical Angle. The word that U+29A0 forms with similar adjacent characters prevents a line break inside it.

The Wikipedia has the following information about this codepoint:

Spherical trigonometry is the branch of spherical geometry that deals with the metrical relationships between the sides and angles of spherical triangles, traditionally expressed using trigonometric functions. On the sphere, geodesics are great circles. Spherical trigonometry is of great importance for calculations in astronomy, geodesy, and navigation.

The origins of spherical trigonometry in Greek mathematics and the major developments in Islamic mathematics are discussed fully in History of trigonometry and Mathematics in medieval Islam. The subject came to fruition in Early Modern times with important developments by John Napier, Delambre and others, and attained an essentially complete form by the end of the nineteenth century with the publication of Todhunter's textbook Spherical trigonometry for the use of colleges and Schools. Since then, significant developments have been the application of vector methods, quaternion methods, and the use of numerical methods.

Representations

System Representation
10656
UTF-8 E2 A6 A0
UTF-16 29 A0
UTF-32 00 00 29 A0
URL-Quoted %E2%A6%A0
HTML hex reference ⦠
Wrong windows-1252 Mojibake ⦠
Encoding: GB18030 (hex bytes) 81 38 81 30
LATEX \Elzlpargt

Related Characters

Elsewhere

Complete Record

Property Value
Age (age) 3.2 (2002)
Unicode Name (na) SPHERICAL ANGLE OPENING LEFT
Unicode 1 Name (na1)
Block (blk) Miscellaneous Symbols
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+29A0 Spherical Angle Opening Left
Lowercase (Lower)
Simple Lowercase Mapping (slc) Glyph for U+29A0 Spherical Angle Opening Left
Lowercase Mapping (lc) Glyph for U+29A0 Spherical Angle Opening Left
Uppercase (Upper)
Simple Uppercase Mapping (suc) Glyph for U+29A0 Spherical Angle Opening Left
Uppercase Mapping (uc) Glyph for U+29A0 Spherical Angle Opening Left
Simple Titlecase Mapping (stc) Glyph for U+29A0 Spherical Angle Opening Left
Titlecase Mapping (tc) Glyph for U+29A0 Spherical Angle Opening Left
Case Folding (cf) Glyph for U+29A0 Spherical Angle Opening Left
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+29A0 Spherical Angle Opening Left
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) 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) Yes
NFD Quick Check (NFD_QC) Yes
NFKC Casefold (NFKC_CF) Glyph for U+29A0 Spherical Angle Opening Left
NFKC Quick Check (NFKC_QC) Yes
NFKC_SCF (NFKC_SCF) Glyph for U+29A0 Spherical Angle Opening Left
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 Mirrored Glyph (bmg) Glyph for U+2222 Spherical Angle
Bidi Paired Bracket (bpb) Glyph for U+29A0 Spherical Angle Opening Left
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
Numeric Value (nv) not a number
Simple Case Folding (scf) Glyph for U+29A0 Spherical Angle Opening Left
Script Extension (scx)
Vertical Orientation (vo) R