Wikipedia:Reference desk/Archives/Mathematics/2007 July 25

= 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)


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


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