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Re: matrix division [message #60433 is a reply to message #60432]

Thu, 22 May 2008 03:07

d.poreh
Messages: 406
Registered: October 2007

Senior Member

On May 22, 12:00 pm, Nigel Wade <n...@ion.le.ac.uk> wrote:
> adam.ran...@bris.ac.uk wrote:
>
>> Thanks for the quick response David! This is the way I'd
>> assumed it would be done but doesn't give me the numbers
>> back I'd expect. For example:
>
>> I = [[1, 2, 2],[2,1,1]]
>> C = [[8, 2, 8],[2,8,1]]
>> Z = I/C
>
>> IDL> print, z gives...
>> 0 1 0
>> 1 0 1
>
>> I want to divide 1 by 8, 2 by 2, 2 by 8, 2 by 2, 1 by 8 & 1 by 1.
>
> You have done.
>
> But maybe what you really want to do is divide 1.0 by 8.0, etc...
>
> --
> Nigel Wade

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

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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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