U+1D4DE "𝓞" Mathematical Bold Script Capital O Unicode Character

Unicode Version 17.0

𝓞

U+1D4DE "𝓞" Mathematical Bold Script Capital O is a typographic glyph belonging to the "Mathematical Alphanumeric Symbols" block, designed specifically for use in mathematical and scientific notation to represent a bold script version of the capital letter O. It is distinct from the ordinary Latin capital O or the standard mathematical italic O, offering a stylized, ornate appearance that is often employed to denote sets, operators, or special functions in advanced mathematical contexts, such as in the notation for orthogonal groups or as a placeholder for an operator in linear algebra. This character ensures clear differentiation in complex formulas where multiple script and weight variants are needed, and it is supported by modern fonts like Cambria Math and Lucida Bright Math.

General Properties

Code Point U+1D4DE
Version Added 3.1
Name Mathematical Bold Script Capital O
Block Mathematical Alphanumeric Symbols
General Category Uppercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "O" U+004F Latin Capital Letter O

Encodings

HTML Decimal Encoding 𝓞
HTML Hex Encoding 𝓞
UTF-8 Encoding 0xF0 0x9D 0x93 0x9E
UTF-16 Encoding 0xD835 0xDCDE
UTF-32 Encoding 0x0001D4DE
C/C++/Java Escape \ud835\udcde

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 "o" U+006F Latin Small Letter O
NFKC Simple Casefold "o" U+006F Latin Small Letter O
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