U+1D51C "𝔜" Mathematical Fraktur Capital Y Unicode Character

Unicode Version 17.0

𝔜

U+1D51C "𝔜" Mathematical Fraktur Capital Y is a stylistic variant of the capital letter Y, drawn in a blackletter or Fraktur typeface that originates from medieval German script, designed primarily for use in mathematical notation to represent a variable or a specific set, such as in formal logic, abstract algebra, or theoretical physics. This character belongs to the "Mathematical Alphanumeric Symbols" block, which was added to provide distinct typographic forms for mathematical expressions without relying on nearby punctuation or text style changes. It is not a standard Latin alphabet letter but functions as a specialized symbol, often employed to denote a mathematical object like a ring, a topological space, or a point in a coordinate system, and its use is especially common in areas requiring clear visual separation between variables and surrounding text.

General Properties

Code Point U+1D51C
Version Added 3.1
Name Mathematical Fraktur Capital Y
Block Mathematical Alphanumeric Symbols
General Category Uppercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "Y" U+0059 Latin Capital Letter Y

Encodings

HTML Decimal Encoding 𝔜
HTML Hex Encoding 𝔜
UTF-8 Encoding 0xF0 0x9D 0x94 0x9C
UTF-16 Encoding 0xD835 0xDD1C
UTF-32 Encoding 0x0001D51C
C/C++/Java Escape \ud835\udd1c

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 "y" U+0079 Latin Small Letter Y
NFKC Simple Casefold "y" U+0079 Latin Small Letter Y
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