pi was born a Hindu, but as a young teenager, is drawn to both Christianity and Islam, and begins to follow all three religions.
pi is officially defined as the ratio of the circumference of a circle to its diameter.
In pi, a numbers theorist named Max Cohen decides to put a power drill through his own brain.
Greek letter, from Hebrew, literally "little mouth." As the name of the mathematical constant, from 1841 in English, used in Latin 1748 by Swiss mathematician Leonhart Euler (1707-1783), as an abbreviation of Greek periphereia "periphery." For the meaning "printer's term for mixed type," see pie (3).
n. pl. pis
Symbol π The 16th letter of the Greek alphabet.
The pH value for the isoelectric point of a given substance in solution.