Binomial Coefficient

[Doug Stewart]

Pascal Bauer wrote:
> Hi List,
>
> it seems to me, that the routine which calculate the binomial 
> coefficient has a problem (it gives wrong answers).
>
> octave:1> printf("%i\n",nchoosek(81, 27))
> 2306279447501836648448
>
> But the correct value is
>
> 2306279447501851002720
>
> Cheers
>
> Pasci
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>   
octave:4> nchoosek(81, 27)
warning: nchoosek: possible loss of precision
ans =  2.30627944750185e+21

Did you see the warning????

Doug