how get it?

hi, I got combination by: n! n_C_k = ---------- k!(n - k)!

8_C_3=56 for ex.:x=abcdefgh can I get 56 combination of x? i.e how get? abc abd abe . . . thanks in advance

Answer 1

[bym]

combnk('abcdefgh',3)

[huda nawaf]

thank you very much

[bym]

Andrei's answer works the same; please accept one

Answer 2

[Andrei Bobrov]

nchoosek(x,3)

[Fangjun Jiang]

Remember to assign x as x='abcdefgh'