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[racket] "error: degrees->complex: 360.0"

From: Danny Yoo (dyoo at hashcollision.org)
Date: Mon May 12 23:06:10 EDT 2014		 
Wow.  Floating point really is nasty.  I see how it might have happened now.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> -0.0000000000000001
-1e-16
> (+ 360 -1e-16)
360.0
>
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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