Permutation algorithm formula derivation process diagram

How are P and C calculated in permutations?

See below for the exact formula: P(5,3)=5*4*3=60C(5,3)=(5*4*3)/(3*2*1)=10

What is the formula for permutations and combinations?

1. In permutations and combinations, the formula for the combination is:

Permutation formula?

The formula for permutations and combinations is as follows:

1. The number of all permutations in which m (m≤n) elements are taken from n different elements is called the number of permutations in which m elements are taken from n different elements, and is represented by the symbol A(n,m).

2, from the n different elements, any m (m ≤ n) elements and a group, called from the n different elements to take out m elements of a combination; from the n different elements to take out m (m ≤ n) elements of all the combinations of the number of combinations of the number of combinations of the number of different elements called from the n different elements to take out the number of m elements of the combination. It is represented by the symbol C(n,m).

Arrangement is the sorting of a specified number of elements from a given number of elements. Combination on the other hand means just taking out the specified number of elements from a given number of elements without considering sorting.