U+03C8 "ψ" Greek Small Letter Psi Unicode Character

U+03C8 "ψ" Greek Small Letter Psi is the twenty-third letter of the Greek alphabet, historically derived from the Phoenician letter samekh, and it is used in modern Greek to represent the sound /ps/ as in the English word "lips." In mathematics and science, the lowercase psi is widely employed as a symbol for wave functions in quantum mechanics, for the digamma function in number theory, and for the psi angle in trigonometry. It also appears in psychology, where it is associated with parapsychology and the study of psychic phenomena, as well as in biochemistry to denote the pseudouridine nucleoside.

General Properties

Code Point	U+03C8
Version Added	1.1
Name	Greek Small Letter Psi
Block	Greek and Coptic
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	ψ
HTML Hex Encoding	ψ
UTF-8 Encoding	0xCF 0x88
UTF-16 Encoding	0x03C8
UTF-32 Encoding	0x000003C8
C/C++/Java Escape	\u03c8

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	"Ψ" U+03A8 Greek Capital Letter Psi
Simple Titlecase Code Point	"Ψ" U+03A8 Greek Capital Letter Psi
Uppercase Code Point	"Ψ" U+03A8 Greek Capital Letter Psi
Titlecase Code Point	"Ψ" U+03A8 Greek Capital Letter Psi
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