U+1D799 "𝞙" Mathematical Sans-Serif Bold Italic Capital Kappa Unicode Character

U+1D799 "𝞙" Mathematical Sans-Serif Bold Italic Capital Kappa is a typographic variant of the Greek letter kappa, designed for use in mathematical and scientific notation to represent the sound or symbol k in a sans-serif, bold, and italic style. It belongs to the Mathematical Alphanumeric Symbols block, which provides distinct letterforms to distinguish variables, constants, and mathematical objects in formal writing. This specific character helps authors and mathematicians avoid ambiguity by clearly marking the letter as a symbol with specific formatting, separate from ordinary text or other styles of Greek letters.

General Properties

Code Point	U+1D799
Version Added	3.1
Name	Mathematical Sans-Serif Bold Italic Capital Kappa
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"Κ" U+039A Greek Capital Letter Kappa

Encodings

HTML Decimal Encoding	𝞙
HTML Hex Encoding	𝞙
UTF-8 Encoding	0xF0 0x9D 0x9E 0x99
UTF-16 Encoding	0xD835 0xDF99
UTF-32 Encoding	0x0001D799
C/C++/Java Escape	\ud835\udf99

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	"κ" U+03BA Greek Small Letter Kappa
NFKC Simple Casefold	"κ" U+03BA Greek Small Letter Kappa
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