U+1D471 "𝑱" Mathematical Bold Italic Capital J Unicode Character
Unicode Version 18.0
Source: Browser Default
U+1D471 "𝑱" Mathematical Bold Italic Capital J is a typographic variant of the Latin capital letter J, designed to combine bold weight with italic slant for use in mathematical and scientific notation. It belongs to the Mathematical Alphanumeric Symbols block, which was introduced to provide distinct, unambiguous glyphs that avoid confusion between variables, operators, and plain text in complex formulas. This character is commonly employed to denote vectors, matrices, or specific mathematical objects such as the Bessel function of the first kind, where the bold italic style helps signal its specialized role.
𝑰
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U+1D470
Mathematical Bold Italic Capital I
𝑲
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U+1D472
Mathematical Bold Italic Capital K
General Properties
Code Point
U+1D471
Name
Mathematical Bold Italic Capital J
Decomposition Mapping
Encodings
HTML Decimal Encoding
𝑱
HTML Hex Encoding
𝑱
UTF-8 Encoding
0xF0 0x9D 0x91 0xB1
UTF-16 Encoding
0xD835 0xDC71
UTF-32 Encoding
0x0001D471
C/C++/Java Escape
\ud835\udc71
Unicode Properties
Numeric Value
NaN
NFKC Casefold
NFKC Simple Casefold
Script Extensions
Common