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Re: matrix division [message #60431 is a reply to message #60429]

Thu, 22 May 2008 05:08

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

d.poreh@gmail.com writes:

> how we can avoid dividing by zero?in matlab we use *eps* what about
> IDL?

I think, in this situation with integers:

IDL> eps = (Machar()).eps
IDL> c = Float(a) / (b > eps)

It would be slightly more complicated with floats, and I haven't
had my coffee yet.

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: matrix division By: David Fanning on Thu, 22 May 2008 05:59
		Re: matrix division By: David Fanning on Thu, 22 May 2008 05:55
		Re: matrix division By: jameskuyper on Thu, 22 May 2008 05:47
		Re: matrix division By: jameskuyper on Thu, 22 May 2008 05:42
		Re: matrix division By: d.poreh on Thu, 22 May 2008 05:40
		Re: matrix division By: David Fanning on Thu, 22 May 2008 05:29
		Re: matrix division By: d.poreh on Thu, 22 May 2008 05:24
		Re: matrix division By: David Fanning on Thu, 22 May 2008 05:13
		Re: matrix division By: David Fanning on Thu, 22 May 2008 05:08
		Re: matrix division By: adam.ranson on Thu, 22 May 2008 04:41
		Re: matrix division By: d.poreh on Thu, 22 May 2008 03:07
		Re: matrix division By: Nigel Wade on Thu, 22 May 2008 03:00
		Re: matrix division By: adam.ranson on Thu, 22 May 2008 01:07
		Re: matrix division By: David Fanning on Wed, 21 May 2008 11:35
		Re: matrix division By: jameskuyper on Thu, 22 May 2008 07:57

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