UnicodeCharactercom
𝐹
U+1D439 Β· MATHEMATICAL ITALIC CAPITAL F

Mathematical Italic Capital F

  • CodepointU+1D439
  • NameMATHEMATICAL ITALIC CAPITAL F
  • Decimal119865
  • BlockMathematical Alphanumeric Symbols (U+1D400–U+1D7FF)
  • Plane1 β€” Supplementary Multilingual Plane
  • ScriptCommon
  • CategoryLu β€” Uppercase Letter
  • Unicode version3.1 (2001)
  • Bidi classL β€” Left-to-Right
  • Combining class0
  • East Asian widthN β€” Neutral
  • MirroredNo

About this character

U+1D439 (𝐹) is MATHEMATICAL ITALIC CAPITAL F, an uppercase letter in the Mathematical Alphanumeric Symbols block. Its script is Common: it is shared by many writing systems rather than belonging to one. It was added in Unicode 3.1 (2001).

It is a font variant of U+0046 F (compatibility decomposition <font>). NFC and NFD leave it alone, but NFKC and NFKD replace it with U+0046 F. Search engines, identifier checks and username systems that apply NFKC will treat the two as the same text.

How to type 𝐹

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Encodings & escapes

UTF-8 encoder β†’
UTF-8F0 9D 90 B94 bytes
UTF-16D835 DC39surrogate pair
UTF-320001D4394 bytes
HTML decimal&#119865;
HTML hex&#x1D439;
CSS\1D439in content: "…"
JavaScript\u{1D439}ES2015+
JavaScript\uD835\uDC39surrogate pair
JSON\uD835\uDC39
Python\U0001D439
Python\N{MATHEMATICAL ITALIC CAPITAL F}by name
Java / C#\uD835\uDC39
C / C++\U0001D439universal character name
Rust / Swift / PHP\u{1D439}
Go\U0001D439
Ruby\u{1D439}
Excel / Sheets=UNICHAR(119865)
URL-encoded%F0%9D%90%B9percent-encoded UTF-8
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Normalization forms

Normalizer β†’
NFCunchanged
NFDunchanged
NFKCU+0046 F
NFKDU+0046 F
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Looks similar

Characters that Unicode’s security data (UTS #39 confusables) lists as visually confusable with this one. Useful for spotting lookalike spoofing in URLs and usernames.

U+0046FLatin Capital Letter F U+03DCϜGreek Letter Digamma U+2131β„±Script Capital F U+1D405𝐅Mathematical Bold Capital F U+1D46D𝑭Mathematical Bold Italic Capital F U+1D4D5𝓕Mathematical Bold Script Capital F U+1D509𝔉Mathematical Fraktur Capital F U+1D53D𝔽Mathematical Double-Struck Capital F U+1D571𝕱Mathematical Bold Fraktur Capital F U+1D5A5π–₯Mathematical Sans-Serif Capital F U+1D5D9𝗙Mathematical Sans-Serif Bold Capital F U+1D60D𝘍Mathematical Sans-Serif Italic Capital F U+1D641𝙁Mathematical Sans-Serif Bold Italic Capital F U+1D675𝙡Mathematical Monospace Capital F U+1D7CA𝟊Mathematical Bold Capital Digamma U+15B4α–΄Canadian Syllabics Blackfoot We
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Nearby in Mathematical Alphanumeric Symbols

All in block β†’
U+1D433𝐳Mathematical Bold Small Z U+1D434𝐴Mathematical Italic Capital A U+1D435𝐡Mathematical Italic Capital B U+1D436𝐢Mathematical Italic Capital C U+1D437𝐷Mathematical Italic Capital D U+1D438𝐸Mathematical Italic Capital E U+1D43A𝐺Mathematical Italic Capital G U+1D43B𝐻Mathematical Italic Capital H U+1D43C𝐼Mathematical Italic Capital I U+1D43D𝐽Mathematical Italic Capital J U+1D43E𝐾Mathematical Italic Capital K U+1D43F𝐿Mathematical Italic Capital L