Home U+2980 to U+29FF Miscellaneous Mathematical Symbols-B
Glyph for U+2987
Source: Noto Sans Math

U+2987 Z Notation Left Image Bracket

U+2987 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 Open Punctuation 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+2988 Z Notation Right Image Bracket. U+2987 prohibits a line break after it.

The Wikipedia has the following information about this codepoint:

In functional programming, the concept of catamorphism (from the Ancient Greek: κατά "downwards" and μορφή "form, shape") denotes the unique homomorphism from an initial algebra into some other algebra.

Catamorphisms provide generalizations of folds of lists to arbitrary algebraic data types, which can be described as initial algebras. The dual concept is that of anamorphism that generalize unfolds. A hylomorphism is the composition of an anamorphism followed by a catamorphism.

Representations

System Representation
Nº 10631
UTF-8 E2 A6 87
UTF-16 29 87
UTF-32 00 00 29 87
URL-Quoted %E2%A6%87
HTML hex reference ⦇
Wrong windows-1252 Mojibake ⦇
Encoding: GB18030 (hex bytes) 81 37 FC 35

Related Characters

Elsewhere

Complete Record

Property Value
Age (age) 3.2 (2002)
Unicode Name (na) Z NOTATION LEFT IMAGE BRACKET
Unicode 1 Name (na1) —
Block (blk) Miscellaneous Symbols
General Category (gc) Open Punctuation
Script (sc) Common
Bidirectional Category (bc) Other Neutral
Combining Class (ccc) Not Reordered
Decomposition Type (dt) none
Decomposition Mapping (dm) Glyph for U+2987 Z Notation Left Image Bracket
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) Glyph for U+2987 Z Notation Left Image Bracket
Lowercase Mapping (lc) Glyph for U+2987 Z Notation Left Image Bracket
Uppercase (Upper) ✘
Simple Uppercase Mapping (suc) Glyph for U+2987 Z Notation Left Image Bracket
Uppercase Mapping (uc) Glyph for U+2987 Z Notation Left Image Bracket
Simple Titlecase Mapping (stc) Glyph for U+2987 Z Notation Left Image Bracket
Titlecase Mapping (tc) Glyph for U+2987 Z Notation Left Image Bracket
Case Folding (cf) Glyph for U+2987 Z Notation Left Image Bracket
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+2987 Z Notation Left Image Bracket
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+2987 Z Notation Left Image Bracket
NFKC Quick Check (NFKC_QC) Yes
NFKC_SCF (NFKC_SCF) Glyph for U+2987 Z Notation Left Image Bracket
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) Close
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+2988 Z Notation Right Image Bracket
Bidi Paired Bracket (bpb) Glyph for U+2988 Z Notation Right Image Bracket
Bidi Paired Bracket Type (bpt) Open
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) Open Punctuation
Numeric Type (nt) none
Numeric Value (nv) not a number
Simple Case Folding (scf) Glyph for U+2987 Z Notation Left Image Bracket
Script Extension (scx)
Vertical Orientation (vo) R