U+1D713 "𝜓" Mathematical Italic Small Psi Unicode Character

U+1D713 "𝜓" Mathematical Italic Small Psi is a glyph representing the lowercase Greek letter psi in a mathematical italic style, designed specifically for use in scientific and mathematical notation rather than standard Greek text. It belongs to the “Mathematical Alphanumeric Symbols” block, which was introduced to provide distinct, semantically unambiguous characters for variables and symbols in formulas, helping to distinguish them from ordinary text. In mathematics and physics, this italic psi is commonly used to denote wave functions in quantum mechanics, as well as various functions and constants in fields like number theory and fluid dynamics.

General Properties

Code Point	U+1D713
Version Added	3.1
Name	Mathematical Italic Small Psi
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"ψ" U+03C8 Greek Small Letter Psi

Encodings

HTML Decimal Encoding	𝜓
HTML Hex Encoding	𝜓
UTF-8 Encoding	0xF0 0x9D 0x9C 0x93
UTF-16 Encoding	0xD835 0xDF13
UTF-32 Encoding	0x0001D713
C/C++/Java Escape	\ud835\udf13

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Lowercase	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"ψ" U+03C8 Greek Small Letter Psi
NFKC Simple Casefold	"ψ" U+03C8 Greek Small Letter Psi
Script	Common
Script Extensions	Common
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