Pisano period

Etymology
Named after Leonardo Bigollo Pisano a.k.a. (c. 1170 – c. 1240–1250).

Noun

 * 1)  The period (of repetition) of the sequence of Fibonacci numbers reduced modulo a given natural number (≥1); it can be considered to be a function π(n) where n is the modulus of reduction (see ) and the function returns the period (of the reduced Fibonacci sequence) corresponding to that given modulus.

Translations

 * Catalan: període de Pisano
 * Chinese:
 * Mandarin: 皮萨诺周期
 * French: période de Pisano