U+1D5EB "𝗫" Mathematical Sans-Serif Bold Capital X Unicode Character

U+1D5EB "𝗫" Mathematical Sans-Serif Bold Capital X is a typographic symbol belonging to the Mathematical Alphanumeric Symbols block, designed for use in mathematical and scientific notation where a distinct, non italic bold sans serif style is required for the letter X. It is encoded at the code point U+1D5EB and serves as a specialized variant of the Latin capital X, allowing authors to differentiate variables, constants, or vectors in complex formulas without relying on formatting tags. This character supports precise communication in digital texts, ensuring that the letter’s bold sans serif appearance is preserved across platforms and fonts.

General Properties

Code Point	U+1D5EB
Version Added	3.1
Name	Mathematical Sans-Serif Bold 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 0x97 0xAB
UTF-16 Encoding	0xD835 0xDDEB
UTF-32 Encoding	0x0001D5EB
C/C++/Java Escape	\ud835\uddeb

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