Home U+1D400 to U+1D7FF Mathematical Alphanumeric Symbols
Glyph for U+1D538
Source: Noto Sans Math

U+1D538 Mathematical Double-Struck Capital A

U+1D538 was added in Unicode version 3.1 in 2001. It belongs to the block U+1D400 to U+1D7FF Mathematical Alphanumeric Symbols in the U+10000 to U+1FFFF Supplementary Multilingual Plane.

This character is a Uppercase Letter and is commonly used, that is, in no specific script.

The glyph is a font version of the glyph Glyph for U+0041 Latin Capital Letter A. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+1D538 forms with similar adjacent characters prevents a line break inside it. The glyph can be confused with one other glyph.

The Wikipedia has the following information about this codepoint:

Blackboard bold is a style of writing bold symbols on a blackboard by doubling certain strokes, commonly used in mathematical lectures, and the derived style of typeface used in printed mathematical texts. The style is most commonly used to represent the number sets N (natural numbers), Z (integers), Q (rational numbers), R (real numbers), and C (complex numbers).

To imitate a bold typeface on a typewriter, a character can be typed over itself (called double-striking); symbols thus produced are called double-struck, and this name is sometimes adopted for blackboard bold symbols, for instance in Unicode glyph names.

In typography, a typeface with characters that are not solid is called inline, handtooled, or open face.

Representations

System Representation
NΒΊ 120120
UTF-8 F0 9D 94 B8
UTF-16 D8 35 DD 38
UTF-32 00 01 D5 38
URL-Quoted %F0%9D%94%B8
HTML hex reference 𝔸
Wrong windows-1252 Mojibake 𝔸
HTML named entity 𝔸
Encoding: GB18030 (hex bytes) 94 33 A9 34
LATEX \mathbb{A}

Related Characters

Confusables

Elsewhere

Complete Record

Property Value
Age (age) 3.1 (2001)
Unicode Name (na) MATHEMATICAL DOUBLE-STRUCK CAPITAL A
Unicode 1 Name (na1) β€”
Block (blk) Mathematical Alphanumeric Symbols
General Category (gc) Uppercase Letter
Script (sc) Common
Bidirectional Category (bc) Left To Right
Combining Class (ccc) Not Reordered
Decomposition Type (dt) font
Decomposition Mapping (dm) Glyph for U+0041 Latin Capital Letter A
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) Glyph for U+1D538 Mathematical Double-Struck Capital A
Lowercase Mapping (lc) Glyph for U+1D538 Mathematical Double-Struck Capital A
Uppercase (Upper) βœ”
Simple Uppercase Mapping (suc) Glyph for U+1D538 Mathematical Double-Struck Capital A
Uppercase Mapping (uc) Glyph for U+1D538 Mathematical Double-Struck Capital A
Simple Titlecase Mapping (stc) Glyph for U+1D538 Mathematical Double-Struck Capital A
Titlecase Mapping (tc) Glyph for U+1D538 Mathematical Double-Struck Capital A
Case Folding (cf) Glyph for U+1D538 Mathematical Double-Struck Capital A
ASCII Hex Digit (AHex) ✘
Alphabetic (Alpha) βœ”
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) βœ”
Changes When Lowercased (CWL) ✘
Changes When Titlecased (CWT) ✘
Changes When Uppercased (CWU) ✘
Cased (Cased) βœ”
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+0061 Latin Small Letter A
Grapheme Cluster Break (GCB) Any
Grapheme Base (Gr_Base) βœ”
Grapheme Extend (Gr_Ext) ✘
Grapheme Link (Gr_Link) ✘
Hex Digit (Hex) ✘
Hyphen (Hyphen) ✘
ID Continue (IDC) βœ”
ID Start (IDS) βœ”
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) β€”
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
Jamo Short Name (JSN) β€”
Join Control (Join_C) ✘
Logical Order Exception (LOE) ✘
Modifier Combining Mark (MCM) ✘
Math (Math) βœ”
Noncharacter Code Point (NChar) ✘
NFC Quick Check (NFC_QC) Yes
NFD Quick Check (NFD_QC) Yes
NFKC Casefold (NFKC_CF) Glyph for U+0061 Latin Small Letter A
NFKC Quick Check (NFKC_QC) No
NFKC_SCF (NFKC_SCF) Glyph for U+0061 Latin Small Letter A
NFKD Quick Check (NFKD_QC) No
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) βœ”
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) Upper
Soft Dotted (SD) ✘
Sentence Terminal (STerm) ✘
Terminal Punctuation (Term) ✘
Unified Ideograph (UIdeo) ✘
Variation Selector (VS) ✘
Word Break (WB) Alphabetic Letter
White Space (WSpace) ✘
XID Continue (XIDC) βœ”
XID Start (XIDS) βœ”
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+1D538 Mathematical Double-Struck Capital A
Bidi Paired Bracket Type (bpt) None
East Asian Width (ea) neutral
Hangul Syllable Type (hst) Not Applicable
ISO 10646 Comment (isc) β€”
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+1D538 Mathematical Double-Struck Capital A
Script Extension (scx)
Vertical Orientation (vo) R