UnicodeCharactercom
๐•ฆ
U+1D566 ยท MATHEMATICAL DOUBLE-STRUCK SMALL U

Mathematical Double-Struck Small U

  • CodepointU+1D566
  • NameMATHEMATICAL DOUBLE-STRUCK SMALL U
  • Decimal120166
  • BlockMathematical Alphanumeric Symbols (U+1D400โ€“U+1D7FF)
  • Plane1 โ€” Supplementary Multilingual Plane
  • ScriptCommon
  • CategoryLl โ€” Lowercase Letter
  • Unicode version3.1 (2001)
  • Bidi classL โ€” Left-to-Right
  • Combining class0
  • East Asian widthN โ€” Neutral
  • MirroredNo

About this character

U+1D566 (๐•ฆ) is MATHEMATICAL DOUBLE-STRUCK SMALL U, a lowercase 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+0075 u (compatibility decomposition <font>). NFC and NFD leave it alone, but NFKC and NFKD replace it with U+0075 u. Search engines, identifier checks and username systems that apply NFKC will treat the two as the same text.

How to type ๐•ฆ

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Encodings & escapes

UTF-8 encoder โ†’
UTF-8F0 9D 95 A64 bytes
UTF-16D835 DD66surrogate pair
UTF-320001D5664 bytes
HTML named&uopf;named character reference
HTML decimal&#120166;
HTML hex&#x1D566;
CSS\1D566in content: "โ€ฆ"
JavaScript\u{1D566}ES2015+
JavaScript\uD835\uDD66surrogate pair
JSON\uD835\uDD66
Python\U0001D566
Python\N{MATHEMATICAL DOUBLE-STRUCK SMALL U}by name
Java / C#\uD835\uDD66
C / C++\U0001D566universal character name
Rust / Swift / PHP\u{1D566}
Go\U0001D566
Ruby\u{1D566}
Excel / Sheets=UNICHAR(120166)
URL-encoded%F0%9D%95%A6percent-encoded UTF-8
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Normalization forms

Normalizer โ†’
NFCunchanged
NFDunchanged
NFKCU+0075 u
NFKDU+0075 u
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Looks similar

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

U+0075uLatin Small Letter U U+028Bส‹Latin Small Letter V with Hook U+03C5ฯ…Greek Small Letter Upsilon U+057DีฝArmenian Small Letter Seh U+1D42E๐ฎMathematical Bold Small U U+1D462๐‘ขMathematical Italic Small U U+1D496๐’–Mathematical Bold Italic Small U U+1D4CA๐“ŠMathematical Script Small U U+1D4FE๐“พMathematical Bold Script Small U U+1D532๐”ฒMathematical Fraktur Small U U+1D59A๐–šMathematical Bold Fraktur Small U U+1D5CE๐—ŽMathematical Sans-Serif Small U U+1D602๐˜‚Mathematical Sans-Serif Bold Small U U+1D636๐˜ถMathematical Sans-Serif Italic Small U U+1D66A๐™ชMathematical Sans-Serif Bold Italic Small U U+1D69E๐šžMathematical Monospace Small U
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Nearby in Mathematical Alphanumeric Symbols

All in block โ†’
U+1D560๐• Mathematical Double-Struck Small O U+1D561๐•กMathematical Double-Struck Small P U+1D562๐•ขMathematical Double-Struck Small Q U+1D563๐•ฃMathematical Double-Struck Small R U+1D564๐•คMathematical Double-Struck Small S U+1D565๐•ฅMathematical Double-Struck Small T U+1D567๐•งMathematical Double-Struck Small V U+1D568๐•จMathematical Double-Struck Small W U+1D569๐•ฉMathematical Double-Struck Small X U+1D56A๐•ชMathematical Double-Struck Small Y U+1D56B๐•ซMathematical Double-Struck Small Z U+1D56C๐•ฌMathematical Bold Fraktur Capital A