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Re: Math Question [message #51101 is a reply to message #51099]

Mon, 30 October 2006 12:17

Jo Klein
Messages: 54
Registered: January 2006

Member

> Just out of curiosity, has anyone tried this on Matlab? I'd expect the
> same (or similar) results, but it'd be interesting if they weren't.
Matlab returns the real part of the argument if it's a real number you
put in:
>> -0.1^2.0

ans =
-0.0100

>> -0.1^2.01
ans =
-0.0098

>> complex(-0.1,0)^2.01
ans =
0.0098 + 0.0003i
Hmm - I don't know if this is more desirable than IDL's behaviour, I
think it's fair enough to warn people who try to do something like that
with their data. In Matlab, try and invert the second operation ... this
can't be good. Suppose there are arguments for both approaches.
Jo

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[Message index]

		Re: Math Question By: rkombiyil on Wed, 01 November 2006 04:51
		Re: Math Question By: Jo Klein on Tue, 31 October 2006 04:33
		Re: Math Question By: news.qwest.net on Mon, 30 October 2006 13:07
		Re: Math Question By: Jean H. on Mon, 30 October 2006 12:32
		Re: Math Question By: Jean H. on Mon, 30 October 2006 12:35
		Re: Math Question By: Jo Klein on Mon, 30 October 2006 12:17
		Re: Math Question By: Braedley on Mon, 30 October 2006 10:22
		Re: Math Question By: James Kuyper on Mon, 30 October 2006 10:15
		Re: Math Question By: David Fanning on Mon, 30 October 2006 09:19
		Re: Math Question By: James Kuyper on Mon, 30 October 2006 09:04
		Re: Math Question By: news.qwest.net on Mon, 30 October 2006 08:54
		Re: Math Question By: Foldy Lajos on Mon, 30 October 2006 07:29
		Re: Math Question By: edward.s.meinel@aero. on Mon, 30 October 2006 07:19
		Re: Math Question By: Rob Dimeo on Sun, 29 October 2006 16:15
		Re: Math Question By: Robbie on Sun, 29 October 2006 15:40
		Re: Math Question By: Robbie on Sun, 29 October 2006 15:01
		Re: Math Question By: Foldy Lajos on Sun, 29 October 2006 09:59

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