U+0399 "Ι" Greek Capital Letter Iota Unicode Character
Unicode Version 18.0
Source: Browser Default
U+0399 "Ι" Greek Capital Letter Iota is the uppercase form of the ninth letter of the Greek alphabet, representing the vowel sound /i/ in both Ancient and Modern Greek. It is visually identical to the Latin capital letter I and has a long history in writing, mathematics, and science, where it often symbolizes index variables, the imaginary unit, or identity matrices depending on context. This character is distinct from the Latin letter I in its encoding and usage within Greek text, and it forms a key part of the Greek script used in scholarly works, religious texts, and modern Greek language publications.
General Properties
Code Point
U+0399
Name
Greek Capital Letter Iota
Encodings
HTML Decimal Encoding
Ι
HTML Hex Encoding
Ι
UTF-8 Encoding
0xCE 0x99
UTF-16 Encoding
0x0399
UTF-32 Encoding
0x00000399
C/C++/Java Escape
\u0399
Unicode Properties
Numeric Value
NaN
Simple Lowercase Code Point
Lowercase Code Point
Simple Case Folding
Case Folding
NFKC Casefold
NFKC Simple Casefold
Script Extensions
Greek