U+1D5D9 "𝗙" Mathematical Sans-Serif Bold Capital F Unicode Character

U+1D5D9 "𝗙" Mathematical Sans-Serif Bold Capital F is a typographic symbol belonging to the Mathematical Alphanumeric Symbols block, designed for use in scientific and mathematical notation where clear stylistic distinction is needed. It represents a bold, sans-serif version of the Latin capital letter F, allowing it to be visually distinct from standard text fonts while maintaining semantic meaning in equations or technical documents. This character is typically produced through specialized text rendering or font support rather than simple bold formatting, and it serves to differentiate variables, sets, or functions in formal mathematical writing without relying on external markup.

General Properties

Code Point	U+1D5D9
Version Added	3.1
Name	Mathematical Sans-Serif Bold Capital F
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"F" U+0046 Latin Capital Letter F

Encodings

HTML Decimal Encoding	𝗙
HTML Hex Encoding	𝗙
UTF-8 Encoding	0xF0 0x9D 0x97 0x99
UTF-16 Encoding	0xD835 0xDDD9
UTF-32 Encoding	0x0001D5D9
C/C++/Java Escape	\ud835\uddd9

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	"f" U+0066 Latin Small Letter F
NFKC Simple Casefold	"f" U+0066 Latin Small Letter F
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