U+1D77D "𝝽" Mathematical Sans-Serif Bold Small Xi Unicode Character

U+1D77D "𝝽" Mathematical Sans-Serif Bold Small Xi is a glyph that represents the lowercase Greek letter xi in a sans-serif, bold typeface, designed primarily for use in mathematical and scientific notation to clearly distinguish it from other symbols or standard text. It belongs to the Mathematical Alphanumeric Symbols block, which provides a comprehensive set of stylized letters for formulas, where the bold weight emphasizes the variable's importance or its vector nature, while the sans-serif style avoids the serifs that could complicate readability in complex equations. This character allows authors to maintain semantic precision and visual consistency when typesetting documents in Unicode-enabled environments.

General Properties

Code Point	U+1D77D
Version Added	3.1
Name	Mathematical Sans-Serif Bold Small Xi
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"ξ" U+03BE Greek Small Letter Xi

Encodings

HTML Decimal Encoding	𝝽
HTML Hex Encoding	𝝽
UTF-8 Encoding	0xF0 0x9D 0x9D 0xBD
UTF-16 Encoding	0xD835 0xDF7D
UTF-32 Encoding	0x0001D77D
C/C++/Java Escape	\ud835\udf7d

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	"ξ" U+03BE Greek Small Letter Xi
NFKC Simple Casefold	"ξ" U+03BE Greek Small Letter Xi
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