U+1D4A5 "𝒥" Mathematical Script Capital J Unicode Character

U+1D4A5 "𝒥" Mathematical Script Capital J is a stylized letter J belonging to the Mathematical Alphanumeric Symbols block, specifically designed for use in mathematical and scientific notation to represent variables, sets, or operators in a decorative script style that differs from standard Latin text. It is typically rendered with elegant, flowing curves reminiscent of calligraphy, allowing it to stand out in equations or formal documents where a distinct typographic appearance is desired. This character is not meant for ordinary writing but rather serves a specialized purpose in typesetting systems like LaTeX or Unicode-compatible software, ensuring consistency across digital and print mathematics.

General Properties

Code Point	U+1D4A5
Version Added	3.1
Name	Mathematical Script Capital J
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"J" U+004A Latin Capital Letter J

Encodings

HTML Decimal Encoding	𝒥
HTML Hex Encoding	𝒥
UTF-8 Encoding	0xF0 0x9D 0x92 0xA5
UTF-16 Encoding	0xD835 0xDCA5
UTF-32 Encoding	0x0001D4A5
C/C++/Java Escape	\ud835\udca5

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	"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
Alphabetic	Yes
Math	Yes
Other Math	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Upper