Re: Factorial

Hi,

  using computers with double precision you cannot calculate it for values larger than 170, because you reach the maximum double number represented in double precision (~ 1.E+305). You should either use packages with extended precision or eventually estimate log n! using the Stirling approximation, see for example

   http://mathworld.wolfram.com/StirlingsApproximation.html

Best Regards,

  Lorenzo
On Feb 14, 2007, at 6:22 AM, navneet kumar wrote:

> Hi Rooters,
> Please tell me is there anyway to calculate factorial of number
> greater than 170 in root?
> I have checked upto 170 and but for value higher than 170 ,i am
> gettin "inf".
>
> thanks in advance.
> Navneet
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> Navneet Kumar
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> Department Of Physics
> Panjab University
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Received on Wed Feb 14 2007 - 10:07:58 CET