U+1D583 "𝖃" Mathematical Bold Fraktur Capital X Unicode Character

Unicode Version 17.0

𝖃

U+1D583 "𝖃" Mathematical Bold Fraktur Capital X is a typographic variant of the capital letter X designed in a bold Fraktur style, a blackletter script historically associated with German printing and academic manuscripts. This character belongs to the Mathematical Alphanumeric Symbols block, which was added to Unicode to provide distinct letter forms for mathematical and scientific notation, allowing authors to convey specific functional or stylistic meanings in formulas and texts. Unlike ordinary Latin characters, this bold Fraktur X is typically used in mathematical contexts where a particular typeface is required to denote sets, vectors, or abstract variables, often appearing in disciplines like algebra or number theory. Its design combines the ornate, angular strokes of Fraktur script with a heavier weight, making it visually distinct from both standard uppercase X and other mathematical X variants.

General Properties

Code Point U+1D583
Version Added 3.1
Name Mathematical Bold Fraktur Capital X
Block Mathematical Alphanumeric Symbols
General Category Uppercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "X" U+0058 Latin Capital Letter X

Encodings

HTML Decimal Encoding 𝖃
HTML Hex Encoding 𝖃
UTF-8 Encoding 0xF0 0x9D 0x96 0x83
UTF-16 Encoding 0xD835 0xDD83
UTF-32 Encoding 0x0001D583
C/C++/Java Escape \ud835\udd83

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Alphabetic
Uppercase Yes
Cased Yes
Changes When NFKC Casefolded Yes
NFKC Casefold "x" U+0078 Latin Small Letter X
NFKC Simple Casefold "x" U+0078 Latin Small Letter X
Script Common
Script Extensions Common
Indic Syllabic Category Other
ID Start Yes
XID Start Yes
ID Continue Yes
XID Continue Yes
Alphabetic Yes
Math Yes
Other Math Yes
Vertical Orientation Rotated
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Alphabetic letter
Sentence Break Upper