Definition on Permutation:
One of many different ways that can be arranged. Another simple definition is schedule, order and arrangement.
Ways:
1! = 1 way
2! = 2 ways
3! = 6 ways
4! = 24 ways
5! = 120 ways
6! = 720 ways
7! = 5,040 ways
Explanation:
I am going to pick 7!, so why 7! = 5,040 ways? simple. you just have to expand it like this,
7 * 6 * 5 * 4 * 3 * 2 * 1, the answer will be 5,040.
Symbols:
N! = Permutation
! = Factorial
n = number selected
Permutation formula:
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| Permutation (Image) |
Example:
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| Example permutation (Image) |
Reference:
Video:
https://www.youtube.com/watch?v=XqQTXW7XfYA
This is great, i can understand the way you explain about this topic but could you please show me the user manual about this topic so that it easy to organize. Once again thank you sir :D
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