Module « math » Python 3.12.1

Fonction perm - module math

Signature de la fonction perm

def perm(n, k=None) 

Description

help(math.perm)

Number of ways to choose k items from n items without repetition and with order.

Evaluates to n! / (n - k)! when k <= n and evaluates
to zero when k > n.

If k is not specified or is None, then k defaults to n
and the function returns n!.

Raises TypeError if either of the arguments are not integers.
Raises ValueError if either of the arguments are negative.