U+1D605 "𝘅" Mathematical Sans-Serif Bold Small X Unicode Character

U+1D605 "𝘅" Mathematical Sans-Serif Bold Small X is a stylized letterform belonging to the Mathematical Alphanumeric Symbols block, specifically designed for use in mathematical and scientific notation where a sans-serif bold lowercase x is required. It serves as a distinct typographic variant separate from the regular Latin small x, allowing authors and typesetters to differentiate variables, constants, or mathematical objects within complex formulas. This character is commonly employed in academic papers, textbooks, and digital mathematics environments to ensure clarity and visual consistency when representing vectors, matrices, or other specialized entities.

General Properties

Code Point	U+1D605
Version Added	3.1
Name	Mathematical Sans-Serif Bold Small X
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"x" U+0078 Latin Small Letter X

Encodings

HTML Decimal Encoding	𝘅
HTML Hex Encoding	𝘅
UTF-8 Encoding	0xF0 0x9D 0x98 0x85
UTF-16 Encoding	0xD835 0xDE05
UTF-32 Encoding	0x0001D605
C/C++/Java Escape	\ud835\ude05

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	"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	Lower