Permutations (nPr)
nPr = n! / (n - r)!
Combinations (nCr)
nCr = n! / (r!(n - r)!)
Dup. Permutations (n^r)
nr
Dup. Combinations H(n,r)
H(n,r) = C(n+r-1, r)
Hur man använder
Enter n and r to calculate permutations and combinations.
- Permutation nPr
- Combination nCr
- Supports large values
Användningsområden
- Calculate permutations and combinations
- Estimate possible outcomes