U+1D494 "𝒔" Mathematical Bold Italic Small S Unicode Character

Unicode Version 17.0

𝒔

U+1D494 "𝒔" Mathematical Bold Italic Small S is a typographic symbol used primarily in mathematical and scientific notation to represent a variable, scalar, or constant in a bold italic typeface, distinguishing it from standard letter forms for clarity in complex formulas. This character is part of the Mathematical Alphanumeric Symbols block, which was added to Unicode to support precise text representation in disciplines like physics, engineering, and advanced mathematics where different styles carry specific semantic meanings. It allows digital documents and publications to accurately render the combination of bold and italic styling for the letter "s" without relying on font formatting workarounds, ensuring consistent display across platforms and software that support the standard.

General Properties

Code Point U+1D494
Version Added 3.1
Name Mathematical Bold Italic Small S
Block Mathematical Alphanumeric Symbols
General Category Lowercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "s" U+0073 Latin Small Letter S

Encodings

HTML Decimal Encoding 𝒔
HTML Hex Encoding 𝒔
UTF-8 Encoding 0xF0 0x9D 0x92 0x94
UTF-16 Encoding 0xD835 0xDC94
UTF-32 Encoding 0x0001D494
C/C++/Java Escape \ud835\udc94

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Alphabetic
Lowercase Yes
Cased Yes
Changes When NFKC Casefolded Yes
NFKC Casefold "s" U+0073 Latin Small Letter S
NFKC Simple Casefold "s" U+0073 Latin Small Letter S
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 Lower