U+03B7 "η" Greek Small Letter Eta Unicode Character

U+03B7 "η" Greek Small Letter Eta is the seventh letter of the Greek alphabet, classified as a vowel in ancient Greek where it represented a long e sound, and in modern Greek it is pronounced as a close front unrounded vowel similar to the English "ee" in "see". This character is widely used beyond its alphabetical role, serving as a common symbol in scientific and mathematical contexts, notably denoting viscosity in physics, efficiency in engineering, and a range parameter in statistics and mathematics. It is encoded in Unicode as part of the Greek and Coptic block, standardizing its representation across digital platforms for use in scholarly, technical, and linguistic writing.

General Properties

Code Point	U+03B7
Version Added	1.1
Name	Greek Small Letter Eta
Block	Greek and Coptic
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	η
HTML Hex Encoding	η
UTF-8 Encoding	0xCE 0xB7
UTF-16 Encoding	0x03B7
UTF-32 Encoding	0x000003B7
C/C++/Java Escape	\u03b7

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	"Η" U+0397 Greek Capital Letter Eta
Simple Titlecase Code Point	"Η" U+0397 Greek Capital Letter Eta
Uppercase Code Point	"Η" U+0397 Greek Capital Letter Eta
Titlecase Code Point	"Η" U+0397 Greek Capital Letter Eta
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