U+1D4BF "𝒿" Mathematical Script Small J Unicode Character

U+1D4BF "𝒿" Mathematical Script Small J is a typographic variant of the lowercase letter j, designed in a cursive or calligraphic style for use in mathematical and scientific notation. It belongs to the Mathematical Alphanumeric Symbols block, which provides distinct letter forms to differentiate variables and constants from ordinary text, helping to avoid confusion with similar characters like the Greek letter iota or other script forms. This character is commonly employed in fields such as physics, engineering, and advanced mathematics to represent quantities like imaginary units, indices, or specific functions, ensuring clarity in complex equations and formulas.

General Properties

Code Point	U+1D4BF
Version Added	3.1
Name	Mathematical Script Small J
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"j" U+006A Latin Small Letter J

Encodings

HTML Decimal Encoding	𝒿
HTML Hex Encoding	𝒿
UTF-8 Encoding	0xF0 0x9D 0x92 0xBF
UTF-16 Encoding	0xD835 0xDCBF
UTF-32 Encoding	0x0001D4BF
C/C++/Java Escape	\ud835\udcbf

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	"j" U+006A Latin Small Letter J
NFKC Simple Casefold	"j" U+006A Latin Small Letter J
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Soft Dotted	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