U+03B5 "ε" Greek Small Letter Epsilon Unicode Character

U+03B5 "ε" Greek Small Letter Epsilon is the fifth letter of the Greek alphabet, used extensively in mathematics, science, and linguistics. In mathematics, it commonly represents a small positive quantity in calculus and analysis, as well as denoting the Levi-Civita symbol in tensor calculus or the empty set in set theory when combined with other notation. In physics, epsilon often indicates permittivity or strain, while in linguistics it represents the mid front unrounded vowel sound. Originating from the Phoenician letter he, epsilon is distinct from the similar-looking Latin letter E and holds significant symbolic weight in academic and technical contexts across multiple disciplines.

General Properties

Code Point	U+03B5
Version Added	1.1
Name	Greek Small Letter Epsilon
Block	Greek and Coptic
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	ε
HTML Hex Encoding	ε
UTF-8 Encoding	0xCE 0xB5
UTF-16 Encoding	0x03B5
UTF-32 Encoding	0x000003B5
C/C++/Java Escape	\u03b5

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	"Ε" U+0395 Greek Capital Letter Epsilon
Simple Titlecase Code Point	"Ε" U+0395 Greek Capital Letter Epsilon
Uppercase Code Point	"Ε" U+0395 Greek Capital Letter Epsilon
Titlecase Code Point	"Ε" U+0395 Greek Capital Letter Epsilon
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