U+1D7BB "𝞻" Mathematical Sans-Serif Bold Italic Small Final Sigma Unicode Character

U+1D7BB "𝞻" Mathematical Sans-Serif Bold Italic Small Final Sigma is a specialized glyph used primarily in mathematical and scientific typography to represent the final form of the lowercase sigma in a sans-serif, bold, italic style. Part of the Mathematical Alphanumeric Symbols block, it allows authors and researchers to differentiate between medial and final sigma forms when typesetting complex formulas or notation, especially in fields like discrete mathematics or linguistics where such distinctions are critical. This character ensures precise semantic and stylistic representation in electronic documents, supporting the need for clear, unambiguous mathematical communication.

General Properties

Code Point	U+1D7BB
Version Added	3.1
Name	Mathematical Sans-Serif Bold Italic Small Final Sigma
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"ς" U+03C2 Greek Small Letter Final Sigma

Encodings

HTML Decimal Encoding	𝞻
HTML Hex Encoding	𝞻
UTF-8 Encoding	0xF0 0x9D 0x9E 0xBB
UTF-16 Encoding	0xD835 0xDFBB
UTF-32 Encoding	0x0001D7BB
C/C++/Java Escape	\ud835\udfbb

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	"σ" U+03C3 Greek Small Letter Sigma
NFKC Simple Casefold	"σ" U+03C3 Greek Small Letter Sigma
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