U+1D679 "𝙹" Mathematical Monospace Capital J Unicode Character

U+1D679 "𝙹" Mathematical Monospace Capital J is a stylized variant of the Latin capital letter J, designed with a fixed-width, typewriter style appearance that distinguishes it from typical textual fonts. It belongs to the Mathematical Alphanumeric Symbols block, which was added to Unicode specifically to support mathematical notation and technical writing where distinct formatting for variables and constants is required. This character is intended for use in mathematical expressions, scientific documents, or programming contexts where a monospaced capital J is needed, though it should not be confused with the standard Latin capital J due to its semantic difference in Unicode.

General Properties

Code Point	U+1D679
Version Added	3.1
Name	Mathematical Monospace 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 0x99 0xB9
UTF-16 Encoding	0xD835 0xDE79
UTF-32 Encoding	0x0001D679
C/C++/Java Escape	\ud835\ude79

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