U+1D6D8 "𝛘" Mathematical Bold Small Chi Unicode Character

U+1D6D8 "𝛘" Mathematical Bold Small Chi is a typographical variant of the Greek letter chi, specifically styled in a bold weight and lowercase form, and is encoded in the Mathematical Alphanumeric Symbols block for use in scientific and mathematical notation. It represents the twenty-second letter of the Greek alphabet in its small script and is commonly employed in fields such as statistics, physics, and engineering, for example to denote a chi-squared distribution or a specific variable in tensor calculus. This character ensures that the chi letter can be visually distinguished from regular text when precision is required, thereby supporting clear communication in technical documents and academic publications.

General Properties

Code Point	U+1D6D8
Version Added	3.1
Name	Mathematical Bold Small Chi
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"χ" U+03C7 Greek Small Letter Chi

Encodings

HTML Decimal Encoding	𝛘
HTML Hex Encoding	𝛘
UTF-8 Encoding	0xF0 0x9D 0x9B 0x98
UTF-16 Encoding	0xD835 0xDED8
UTF-32 Encoding	0x0001D6D8
C/C++/Java Escape	\ud835\uded8

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	"χ" U+03C7 Greek Small Letter Chi
NFKC Simple Casefold	"χ" U+03C7 Greek Small Letter Chi
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