U+1D70D "𝜍" Mathematical Italic Small Final Sigma Unicode Character

U+1D70D "𝜍" Mathematical Italic Small Final Sigma is a specialized typographic symbol used primarily in mathematical and scientific notation to represent the final or word-final form of the lowercase sigma, distinguished from the standard medial or initial form (𝜎, U+1D70E). This character belongs to the Mathematical Alphanumeric Symbols block, which was introduced to separate mathematical expressions from regular text and to provide distinct italic variants for letters that have contextual forms in Greek. Unlike the common final sigma (ς) found in standard Greek text, the italic version U+1D70D is intended for use in formulas, equations, and academic writing where consistent italic styling is required for variables and constants.

General Properties

Code Point	U+1D70D
Version Added	3.1
Name	Mathematical 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 0x9C 0x8D
UTF-16 Encoding	0xD835 0xDF0D
UTF-32 Encoding	0x0001D70D
C/C++/Java Escape	\ud835\udf0d

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