U+1D4D1 "𝓑" Mathematical Bold Script Capital B Unicode Character

Unicode Version 17.0

𝓑

U+1D4D1 "𝓑" Mathematical Bold Script Capital B is a typographic character from the Mathematical Alphanumeric Symbols block, designed specifically for use in mathematical and scientific notation to represent a bold script version of the Latin capital letter B. This character allows writers and typesetters to clearly distinguish variables, vectors, or special mathematical objects from standard text, particularly in fields like physics, linear algebra, and set theory. It belongs to a larger family of mathematical script letters that emulate the style of handwritten calligraphy while being digitally encoded for consistent rendering across platforms. Unlike its plain uppercase counterpart, the "𝓑" glyph carries a distinct ornamental flourish, making it ideal for denoting specific entities such as a basis set or a bold symbol in formal equations.

General Properties

Code Point U+1D4D1
Version Added 3.1
Name Mathematical Bold Script Capital B
Block Mathematical Alphanumeric Symbols
General Category Uppercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "B" U+0042 Latin Capital Letter B

Encodings

HTML Decimal Encoding 𝓑
HTML Hex Encoding 𝓑
UTF-8 Encoding 0xF0 0x9D 0x93 0x91
UTF-16 Encoding 0xD835 0xDCD1
UTF-32 Encoding 0x0001D4D1
C/C++/Java Escape \ud835\udcd1

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 "b" U+0062 Latin Small Letter B
NFKC Simple Casefold "b" U+0062 Latin Small Letter B
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