Combinatorics in Excel

For faster calculations, I think after well-comprehension of cominatorics concepts, we can use excel to calculate them a bit faster 

Below is the functions used to calculate them in excel

- Permutation (Variation) without Repition > =PERMUT(n, p)

- Permutation (Variation) with Repition > =PERMUTATIONA(n, p)

- Comination without Repition > =COMBIN(n, p)

- Comination with Repition > =COMBINA(n, p)