On May 9, 2007, at 23:19 , Timothy Clemans wrote:

>
> I don't want someone trying to make a 3D point using a complex number
> with a non-zero imaginary part.

There should be a simpler way to check for that than for real  
numbers, but if you are trying to make this absolutely foolproof, you  
could be in for a lifetime of successive refinements to your code.

Justin

--
Justin C. Walker, Curmudgeon at Large
Director
Institute for the Enhancement of the Director's Income
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Nobody knows the trouble I've been
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