U+1D747 "𝝇" Mathematical Bold Italic Small Final Sigma Unicode Character

U+1D747 "𝝇" Mathematical Bold Italic Small Final Sigma is a specialized typographic variant of the Greek letter sigma, designed specifically for mathematical notation within the Mathematical Alphanumeric Symbols block. It represents the final form of the lowercase sigma (ς), rendered in a bold italic typeface, which distinguishes it from the standard medial sigma (σ) in contexts where letter shape carries semantic weight. This character is primarily used in mathematical and scientific texts to denote the final sigma in formulas, such as when representing sums or specific variables, ensuring visual consistency with other bold italic mathematical symbols. Its inclusion in Unicode supports precise and unambiguous typography in academic and technical publishing.

General Properties

Code Point	U+1D747
Version Added	3.1
Name	Mathematical 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 0x9D 0x87
UTF-16 Encoding	0xD835 0xDF47
UTF-32 Encoding	0x0001D747
C/C++/Java Escape	\ud835\udf47

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