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Re: Large Numbers [message #64983 is a reply to message #64982]

Fri, 06 February 2009 19:59

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Kenneth P. Bowman writes:

> If you are dividing them, you don't really want to use
> integers, do you? That's what floats (and doubles) are for.

Humm. You might have a point there.

Ok, how about a contest. Given two integers, x and n,
with x le n, what is the most efficient way to evaluate
this expression:

n!/(x! * (n-x)!)

The usual prize (as my children know well, a hug
and a kiss) to the winner. :-)

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: Large Numbers By: David Fanning on Fri, 06 February 2009 20:13
		Re: Large Numbers By: pgrigis on Fri, 06 February 2009 20:06
		Re: Large Numbers By: David Fanning on Fri, 06 February 2009 19:59
		Re: Large Numbers By: David Fanning on Fri, 06 February 2009 19:53
		Re: Large Numbers By: Kenneth P. Bowman on Fri, 06 February 2009 18:57
		Re: Large Numbers By: pgrigis on Fri, 06 February 2009 17:14
		Re: Large Numbers By: David Fanning on Fri, 06 February 2009 16:54
		Re: Large Numbers By: David Fanning on Fri, 06 February 2009 16:50
		Re: Large Numbers By: Chris[6] on Fri, 06 February 2009 16:49
		Re: Large Numbers By: pgrigis on Fri, 06 February 2009 15:35
		Re: Large Numbers By: Jeremy Bailin on Mon, 09 February 2009 20:28
		Re: Large Numbers By: Michael Galloy on Tue, 10 February 2009 09:28

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