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Re: gEDA-user: pcb crooked traces

On Oct 11, 2010, at 1:54 PM, John Doty wrote:

> 
> You misunderstand. Computer floats are not real numbers: they are discrete elements of a finite set.
+1

> Their behavior is more difficult to comprehend than the behavior of integers.
> 
Well, it's not that so much as that your instincts about numeracy learned since grade school are wrong.  Floating point addition is not associative, for one thing.  Function monoticity is crucially important in some applications, more important than accuracy.  Floats have their place.  I don't think pcb track X/Y coordinates is one, though.

-dave



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