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Re: Complex numbers [message #36698]

Tue, 14 October 2003 13:01

mmeron
Messages: 44
Registered: October 2003

Member

In article <162586e3.0310141140.406f5659@posting.google.com>, biomedthesis2002@yahoo.com (New2IDL) writes:
> hi,
> I have a numerical equation
> a = (-0.2)^(-2.2).
>
> IDL gives me an error message "Program caused arithmetic error:
> Floating illegal operand"
>
> But MATLAB gives the output, which is complex number. I am not sure
> how to solve this in IDL. Can anybody help me on this please?
>
IDL needs to be told that you want a complex operation

IDL> print, (-0.2)^(-2.2)
-NaN
IDL> print, (complex(-0.2))^(-2.2)
( 27.9056, -20.2746)

Mati Meron | "When you argue with a fool,
meron@cars.uchicago.edu | chances are he is doing just the same"

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