U+1D4E7 "𝓧" Mathematical Bold Script Capital X Unicode Character

U+1D4E7 "𝓧" Mathematical Bold Script Capital X is a stylized glyph belonging to the Mathematical Alphanumeric Symbols block, designed specifically for use in mathematical and scientific notation to represent a variable, point, or set in a bold, script typeface. It is not intended for regular text but serves to distinguish mathematical expressions from standard prose, often appearing in contexts like vector analysis, set theory, or abstract algebra where a bold script letter is required. This character was encoded as part of Unicode 3.1 in March 2001, ensuring compatibility across digital platforms for precise mathematical typesetting without relying on font formatting.

General Properties

Code Point	U+1D4E7
Version Added	3.1
Name	Mathematical Bold Script Capital X
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"X" U+0058 Latin Capital Letter X

Encodings

HTML Decimal Encoding	𝓧
HTML Hex Encoding	𝓧
UTF-8 Encoding	0xF0 0x9D 0x93 0xA7
UTF-16 Encoding	0xD835 0xDCE7
UTF-32 Encoding	0x0001D4E7
C/C++/Java Escape	\ud835\udce7

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	"x" U+0078 Latin Small Letter X
NFKC Simple Casefold	"x" U+0078 Latin Small Letter X
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