A permutation is an arrangement of objects in some specific order. Permutations are regarded as ordered elements.
A selection in which order is not important is called a combination. Combinations are regarded as sets.
For example, if there is a group of 3 different colored balls, then any group of 2 balls selected from it will be considered as a combination, whereas the different arrangements of every combination will be considered as a permutation.
The only difference is that in a permutation the order of the elements matters whereas in a combination it does not.
the permutation is an specific ordered combination. the combination is not need specific order combination...
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To see that combinations and permutation is the logic of knowledge.
To see that combinations and permutation is the logic of knowledge.
Permutation is when order matters
Permutation is when order matters, combination is when order does not matter
please answer
n p =n!/(n-r)! r and n c =n!/r!(n-r)! r
In permutations the order of the elements does matter. In combinations it does not.So, the permutations 1,2,3 and 3,1,2 are not the same. But they are the same combination.
A permutation group is a group of permutations, or bijections (one-to-one, onto functions) between a finite set and itself.
Only 1, since the order of the digits does not matter in a compbination. In a permutation, yes, but not combination.