U+1D658 "𝙘" Mathematical Sans-Serif Bold Italic Small C Unicode Character

U+1D658 "𝙘" Mathematical Sans-Serif Bold Italic Small C is a typographic glyph used primarily in mathematical and scientific notation to represent the variable or constant 'c' with a distinct, modern sans-serif aesthetic combined with bold weight and italic slant. It belongs to the Mathematical Alphanumeric Symbols block, which was added to the Unicode Standard to allow clear, unambiguous representation of different letter styles in digital text without relying on font formatting. This specific character is often employed in equations, proofs, or formal documents where a clear distinction is needed between italic and non italic characters or where the sans-serif style is preferred for its clarity in complex mathematical expressions.

General Properties

Code Point	U+1D658
Version Added	3.1
Name	Mathematical Sans-Serif Bold Italic Small C
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"c" U+0063 Latin Small Letter C

Encodings

HTML Decimal Encoding	𝙘
HTML Hex Encoding	𝙘
UTF-8 Encoding	0xF0 0x9D 0x99 0x98
UTF-16 Encoding	0xD835 0xDE58
UTF-32 Encoding	0x0001D658
C/C++/Java Escape	\ud835\ude58

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	"c" U+0063 Latin Small Letter C
NFKC Simple Casefold	"c" U+0063 Latin Small Letter C
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