U+1D40B "𝐋" Mathematical Bold Capital L Unicode Character

Unicode Version 17.0

𝐋

U+1D40B "𝐋" Mathematical Bold Capital L is a typographic glyph from the Mathematical Alphanumeric Symbols block, designed for use in scientific and technical notation where a bold, uppercase Latin letter L is needed to distinguish variables, vectors, or constants from standard text. This character is encoded for compatibility with mathematical formatting in plain text environments, allowing it to be rendered correctly across platforms without reliance on specific font styles. It belongs to a set of double struck or bold mathematical alphanumerics that help clarify meaning in equations, such as representing a linear operator, a Lie algebra element, or a Lagrangian in physics. Its visual appearance resembles a standard capital L but with a heavier stroke weight, ensuring it stands out in dense mathematical expressions.

General Properties

Code Point U+1D40B
Version Added 3.1
Name Mathematical Bold Capital L
Block Mathematical Alphanumeric Symbols
General Category Uppercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "L" U+004C Latin Capital Letter L

Encodings

HTML Decimal Encoding 𝐋
HTML Hex Encoding 𝐋
UTF-8 Encoding 0xF0 0x9D 0x90 0x8B
UTF-16 Encoding 0xD835 0xDC0B
UTF-32 Encoding 0x0001D40B
C/C++/Java Escape \ud835\udc0b

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 "l" U+006C Latin Small Letter L
NFKC Simple Casefold "l" U+006C Latin Small Letter L
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