what greek letter is also the symbol for pi
Pi (/ËpaÉª/; Greek: [pi], uppercase Ï, lowercase Ï) is the sixteenth letter of the Greek alphabet, representing [p]. In the system of Greek numerals it has a value of 80. It was derived from the Phoenician letter pe . Letters that arose from pi include Cyrillic Pe (Ð¿, Ð¿), Coptic pi (â² , â²¡), and Gothic pairthra (ð). 1 Symbol.