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July 25

Formula

Sorry to give such a mundane annoying question, but does anybody recognise this formula? (the letters I have put in are meaningless)

$\mathrm {k} ={\frac {\mathrm {m} !}{\mathrm {n} !\times (\mathrm {m} -\mathrm {n} )!}}$

thank you. Philc 14:26, 25 July 2007 (UTC)[reply]

Yes, of course. This is the binomial coefficient. -- Meni Rosenfeld (talk) 14:30, 25 July 2007 (UTC)[reply]

Thanks very much, I knew I should recognise it! Philc 15:28, 25 July 2007 (UTC)[reply]