U+1D6F4 "𝛴" Mathematical Italic Capital Sigma Unicode Character

U+1D6F4 "𝛴" Mathematical Italic Capital Sigma is a typographic variant of the Greek capital letter sigma, specifically designed for use in mathematical and scientific notation where italicized symbols are preferred to distinguish variables from ordinary text. It belongs to the Mathematical Alphanumeric Symbols block, which provides separate italic, bold, and other styled versions of standard letters and Greek characters to avoid conflicts with regular typography. This character is commonly used in fields such as mathematics, physics, and engineering to represent summation or other sigma-related concepts within formulas and equations, ensuring consistent formatting across digital texts.

General Properties

Code Point	U+1D6F4
Version Added	3.1
Name	Mathematical Italic Capital Sigma
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"Σ" U+03A3 Greek Capital Letter Sigma

Encodings

HTML Decimal Encoding	𝛴
HTML Hex Encoding	𝛴
UTF-8 Encoding	0xF0 0x9D 0x9B 0xB4
UTF-16 Encoding	0xD835 0xDEF4
UTF-32 Encoding	0x0001D6F4
C/C++/Java Escape	\ud835\udef4

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	"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	Upper