how get it?

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huda nawaf on 18 Sep 2011

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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

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bym on 18 Sep 2011

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combnk('abcdefgh',3)

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huda nawaf on 18 Sep 2011

thank you very much

bym on 18 Sep 2011

Andrei's answer works the same; please accept one

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Andrei Bobrov on 18 Sep 2011

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nchoosek(x,3)

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Fangjun Jiang on 18 Sep 2011

Remember to assign x as x='abcdefgh'

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