U+1D49A "𝒚" Mathematical Bold Italic Small Y Unicode Character

Unicode Version 17.0

𝒚

U+1D49A "𝒚" Mathematical Bold Italic Small Y is a specialized symbol from the Mathematical Alphanumeric Symbols block, designed to represent the letter "y" in a bold italic style for use in mathematical and scientific notation. This character allows writers to clearly denote a vector, variable, or tensor in typeset documents, particularly in contexts where distinguishing it from regular text or other stylistic variants is essential. It is encoded in Unicode to ensure consistent representation across different software and platforms, supporting precise communication in fields like physics, engineering, and advanced mathematics. Its primary purpose is to provide a visually distinct and semantically meaningful form of the letter "y" for complex equations and formal academic writing.

General Properties

Code Point U+1D49A
Version Added 3.1
Name Mathematical Bold Italic Small Y
Block Mathematical Alphanumeric Symbols
General Category Lowercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "y" U+0079 Latin Small Letter Y

Encodings

HTML Decimal Encoding 𝒚
HTML Hex Encoding 𝒚
UTF-8 Encoding 0xF0 0x9D 0x92 0x9A
UTF-16 Encoding 0xD835 0xDC9A
UTF-32 Encoding 0x0001D49A
C/C++/Java Escape \ud835\udc9a

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Alphabetic
Lowercase 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 Lower