English version

pi in Numbers topic

From Longman Dictionary of Contemporary Englishpipi /paɪ/ noun [uncountable]  technicalHM a number that is represented by the Greek letter (π) and is equal to the distance around a circle, divided by its width
Examples from the Corpus
piA broken networked intelligence may be able to calculate pi to the billionth digit but not forward e-mail to a new address.Consider a symmetric equilibrium in which the n firms in industry i all charge a price pi.Now came the pi ce de r sistance.One of his most popular miracles occurred one day while pi owing.