U+1D401 "𝐁" Mathematical Bold Capital B Unicode Character
Unicode Version 18.0
Source: Browser Default
U+1D401 "𝐁" Mathematical Bold Capital B is part of the Mathematical Alphanumeric Symbols block, specifically designed to represent a bold uppercase Latin B for use in mathematical and scientific notation. It is encoded at code point U+1D401 in Unicode version 3.1, released in March 2001, and serves to distinguish styled text from plain Latin letters, supporting clarity in equations, vector notation, and mathematical expressions. This character is distinct from the regular ASCII capital B, ensuring that typographic formatting is preserved in digital text without relying on font-based bolding.
General Properties
Code Point
U+1D401
Name
Mathematical Bold Capital B
Decomposition Mapping
Encodings
HTML Decimal Encoding
𝐁
HTML Hex Encoding
𝐁
UTF-8 Encoding
0xF0 0x9D 0x90 0x81
UTF-16 Encoding
0xD835 0xDC01
UTF-32 Encoding
0x0001D401
C/C++/Java Escape
\ud835\udc01
Unicode Properties
Numeric Value
NaN
NFKC Casefold
NFKC Simple Casefold
Script Extensions
Common