Member Avatar for snaidis

what is the factorial uses?
what does factorial do? :?:

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  • Latest Post Latest Post by Narue
Member Avatar for SpS

Example
5!=5*4*3*2*1=120
! represents factorial

Member Avatar for WolfPack

That is a mathematics question and explanation is lengthy. It is mostly used in numerical series. Best thing is to go to a mathematics site and search in it. Here is a sample

Member Avatar for jim mcnamara

factorials get BIG really fast and exceed the limits of 32-bit unsigned integer variables by 13!.

If you want to play with them use a datatype that can handle huge numbers, or switch to an extended precision mathematics library like GMP.

Member Avatar for bumsfeld

factorials get BIG really fast and exceed the limits of 32-bit unsigned integer variables by 13!.

If you want to play with them use a datatype that can handle huge numbers, or switch to an extended precision mathematics library like GMP.

Or use Ruby or Python that do not have these narrow limits.

Member Avatar for Narue

>Or use Ruby or Python that do not have these narrow limits.
The only difference being that the arbitrary precision types are built into the language instead of offered as a library. I always enjoy when someone goes into a random thread and suggests that people use their favorite languages for no good reason.

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