U+03F5 "ϵ" Greek Lunate Epsilon Symbol Unicode Character

U+03F5 "ϵ" Greek Lunate Epsilon Symbol is a variant form of the Greek letter epsilon, distinguished by its rounded, crescent-like shape rather than the standard straight-backed epsilon (ε). Historically, this lunate form was commonly used in ancient Greek inscriptions and early manuscripts, and it later became significant in modern contexts as the symbol for the base of natural logarithms in mathematics, particularly within the Unicode standard to differentiate it from the similar-looking Greek small letter epsilon (U+03B5).

General Properties

Code Point	U+03F5
Version Added	3.1
Name	Greek Lunate Epsilon Symbol
Block	Greek and Coptic
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Compat
Decomposition Mapping	"ε" U+03B5 Greek Small Letter Epsilon

Encodings

HTML Decimal Encoding	ϵ
HTML Hex Encoding	ϵ
UTF-8 Encoding	0xCF 0xB5
UTF-16 Encoding	0x03F5
UTF-32 Encoding	0x000003F5
C/C++/Java Escape	\u03f5

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
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
Simple Case Folding	"ε" U+03B5 Greek Small Letter Epsilon
Case Folding	"ε" U+03B5 Greek Small Letter Epsilon
Cased	Yes
Changes When Casefolded	Yes
Changes When Casemapped	Yes
Changes When NFKC Casefolded	Yes
Changes When Titlecased	Yes
Changes When Uppercased	Yes
NFKC Casefold	"ε" U+03B5 Greek Small Letter Epsilon
NFKC Simple Casefold	"ε" U+03B5 Greek Small Letter Epsilon
Script	Greek
Script Extensions	Greek
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