U+1D509 "𝔉" Mathematical Fraktur Capital F Unicode Character

Unicode Version 17.0

𝔉

U+1D509 "𝔉" Mathematical Fraktur Capital F is a stylized letter F drawn in the blackletter or Fraktur script, a decorative typeface once common in German printing, and it belongs to the block of Mathematical Alphanumeric Symbols used primarily in academic and scientific notation. This character is intended for use in mathematical expressions where a distinctive, old-style capital F is needed to represent a specific function, operator, or variable, such as a Fraktur F denoting a sheaf in algebraic geometry or a Fourier transform in analysis. The character is encoded separately from the standard Latin letter F to prevent ambiguity in plain text, ensuring that mathematical documents can convey precise typographic and semantic meanings in digital environments.

General Properties

Code Point U+1D509
Version Added 3.1
Name Mathematical Fraktur 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 0x94 0x89
UTF-16 Encoding 0xD835 0xDD09
UTF-32 Encoding 0x0001D509
C/C++/Java Escape \ud835\udd09

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