U+03C3 "σ" Greek Small Letter Sigma Unicode Character

U+03C3 "σ" Greek Small Letter Sigma is the lower case form of the eighteenth letter in the Greek alphabet and it is used extensively in modern and ancient Greek writing to represent the /s/ sound. In mathematics and science, it is most famously employed to denote summation in sigma notation, as well as standard deviation in statistics and electrical conductivity in physics. This character possesses a unique contextual variation in its native Greek typography, where it appears as a different glyph, the final sigma "ς", when it occurs at the end of a word, though Unicode encodes this variant separately as U+03C2.

General Properties

Code Point	U+03C3
Version Added	1.1
Name	Greek Small Letter Sigma
Block	Greek and Coptic
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	σ
HTML Hex Encoding	σ
UTF-8 Encoding	0xCF 0x83
UTF-16 Encoding	0x03C3
UTF-32 Encoding	0x000003C3
C/C++/Java Escape	\u03c3

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
East Asian Width	Ambiguous
Lowercase	Yes
Simple Uppercase Code Point	"Σ" U+03A3 Greek Capital Letter Sigma
Simple Titlecase Code Point	"Σ" U+03A3 Greek Capital Letter Sigma
Uppercase Code Point	"Σ" U+03A3 Greek Capital Letter Sigma
Titlecase Code Point	"Σ" U+03A3 Greek Capital Letter Sigma
Cased	Yes
Changes When Casemapped	Yes
Changes When Titlecased	Yes
Changes When Uppercased	Yes
Script	Greek
Script Extensions	Greek
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Lower