Chi (letter)
Twenty-second letter of the Greek alphabet / From Wikipedia, the free encyclopedia
Not to be confused with Xi (letter).
Chi (/ˈkaɪ, ˈxiː/ ⓘ;[1][2] uppercase Χ, lowercase χ; Greek: χῖ) is the twenty-second letter of the Greek alphabet.
Chi (/ˈkaɪ, ˈxiː/ ⓘ;[1][2] uppercase Χ, lowercase χ; Greek: χῖ) is the twenty-second letter of the Greek alphabet.