Pi (upper case Π, lower case π) is the 16th letter of the Greek alphabet. In the system of Greek numerals it has a value of 80.
In Greek, the letter is pronounced /piː/; in English, though, it is pronounced /paɪː/ (as the word pie). In words, it is pronounced /p/. In Modern Greek, the sequence of letters μπ represents the /b/ sound, as in boy (the second letter of the Greek alphabet is now pronounced /v/ as in very).
The upper-case letter Π is used as a symbol for:
The lower-case letter π is used as a symbol for:
Last updated: 05-13-2005 07:56:04