U+1D6D3 "𝛓" Mathematical Bold Small Final Sigma Unicode Character

U+1D6D3 "𝛓" Mathematical Bold Small Final Sigma is a specialized glyph within the Mathematical Alphanumeric Symbols block, designed for use in mathematical or scientific notation where a bold, final form of the Greek letter sigma is required. Unlike the standard Greek final sigma (ς) used in regular text, this character represents the same letter in a bold typeface, typically applied to distinguish variables, constants, or other symbols in formulas or academic documents that demand clear stylistic differentiation. Its primary function is to ensure visual consistency in contexts such as vector calculus, set theory, or statistical mathematics, where bold letters often denote matrices, tensors, or other abstract mathematical entities.

General Properties

Code Point	U+1D6D3
Version Added	3.1
Name	Mathematical Bold 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 0x9B 0x93
UTF-16 Encoding	0xD835 0xDED3
UTF-32 Encoding	0x0001D6D3
C/C++/Java Escape	\ud835\uded3

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