Python-based permutation and combination computing operation example, python example

Python-based permutation and combination computing operation example, python example

This article describes how to arrange and combine computing operations implemented by Python. We will share this with you for your reference. The details are as follows:

1. Call scipy to calculate the specific value of the permutation and combination.

> From scipy. special import comb, perm> perm (3, 2) 6.0> comb (3, 2) 3.0

2. Call itertools to obtain the total number of permutation and combination Conditions

> From itertools import combinations, permutations> permutations ([1, 2, 3], 2) <itertools. permutations at 0x7febfd880fc0> # iteratable Object> list (permutations ([1, 2, 3], 2) [(1, 2), (1, 3 ), (2, 1), (2, 3), (3, 1), (3, 2)]> list (combinations ([1, 2, 3], 2) [(1, 2), (1, 3), (2, 3)]

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