As it is, our trigonometry being founded on the circle, π first appears as the ratio stated.
It was he who first carried the computation of π to 35 decimal places.
Hence g may be written for l, but only once: do it twice, and you require the time to be π √(l2 : g2).
In one of the notes Legendre gives a proof of the irrationality of π.
Further studies of the interactions of π mesons are made in the meson cave.
This leads to defining the ratio of the circumference to the diameter as π.
If p be the length of the perpendicular, either of these angles is denoted by Π(p).
Probably the earliest approximation of the value of π was 3.
And so I have come in contact with him on 666 as well as on π!
The factors 1/π and -1/π are taken account of in the graduation of the wheels.
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).
π
The Greek letter pi. Entries beginning with this character are alphabetized under pi.
pi (pī)
n. pl. pis
Symbol π The 16th letter of the Greek alphabet.
pI (pē'ī')
n.
The pH value for the isoelectric point of a given substance in solution.
The irrational number obtained by dividing the length of the diameter of a circle into its circumference. Pi is approximately 3.1416. The sign for pi is π.
noun