U+1D63A "𝘺" Mathematical Sans-Serif Italic Small Y Unicode Character

U+1D63A "𝘺" Mathematical Sans-Serif Italic Small Y is part of the Mathematical Alphanumeric Symbols block, designed for use in scientific and mathematical notation where a distinct, slanted sans-serif style is required for the lowercase letter y. It does not represent a specific numeric or algebraic value by itself but serves as a typographic variant to differentiate variables from ordinary text, often employed in fields like physics, engineering, and formal logic. This character allows authors and typesetters to maintain clarity and consistency in equations while preserving the visual contrast between standard prose and mathematical expressions.

General Properties

Code Point	U+1D63A
Version Added	3.1
Name	Mathematical Sans-Serif 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 0x98 0xBA
UTF-16 Encoding	0xD835 0xDE3A
UTF-32 Encoding	0x0001D63A
C/C++/Java Escape	\ud835\ude3a

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