U+1D4B0 "𝒰" Mathematical Script Capital U Unicode Character

Unicode Version 17.0

𝒰

U+1D4B0 "𝒰" Mathematical Script Capital U is a stylized letter U from the Mathematical Alphanumeric Symbols block, designed primarily for use in mathematical and scientific notation to represent a variable, function, or set, such as a universe set in set theory or a unitary operator in quantum mechanics. It belongs to the "mathematical script" style, which is based on cursive or calligraphic letterforms, and is distinct from the standard Latin capital U to avoid confusion between ordinary text and mathematical expressions. This character is typically rendered in Unicode-compliant fonts that include the mathematical script alphabet, and it is classified as a lowercase letter despite its uppercase appearance because it is an uppercase mathematical symbol.

General Properties

Code Point U+1D4B0
Version Added 3.1
Name Mathematical Script Capital U
Block Mathematical Alphanumeric Symbols
General Category Uppercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "U" U+0055 Latin Capital Letter U

Encodings

HTML Decimal Encoding 𝒰
HTML Hex Encoding 𝒰
UTF-8 Encoding 0xF0 0x9D 0x92 0xB0
UTF-16 Encoding 0xD835 0xDCB0
UTF-32 Encoding 0x0001D4B0
C/C++/Java Escape \ud835\udcb0

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 "u" U+0075 Latin Small Letter U
NFKC Simple Casefold "u" U+0075 Latin Small Letter U
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