U+1D440 "𝑀" Mathematical Italic Capital M Unicode Character

Unicode Version 17.0

𝑀

U+1D440 "𝑀" Mathematical Italic Capital M is a typographic variant of the standard uppercase Latin letter M, specifically designed for use in mathematical and scientific notation to represent variables, matrices, or other quantities where italic styling is conventionally required to distinguish them from plain text. It belongs to the Mathematical Alphanumeric Symbols block, which provides dedicated code points for letters in various styles such as bold, italic, script, and fraktur, ensuring consistent rendering across digital platforms regardless of local font availability. This character avoids the ambiguity that can arise when relying on simple italic formatting of regular letters, which may not always display correctly or may be stripped away in plain text contexts.

General Properties

Code Point U+1D440
Version Added 3.1
Name Mathematical Italic Capital M
Block Mathematical Alphanumeric Symbols
General Category Uppercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "M" U+004D Latin Capital Letter M

Encodings

HTML Decimal Encoding 𝑀
HTML Hex Encoding 𝑀
UTF-8 Encoding 0xF0 0x9D 0x91 0x80
UTF-16 Encoding 0xD835 0xDC40
UTF-32 Encoding 0x0001D440
C/C++/Java Escape \ud835\udc40

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 "m" U+006D Latin Small Letter M
NFKC Simple Casefold "m" U+006D Latin Small Letter M
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