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Mathematica

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    $\begingroup$ You can use Complex @@@ r in place of PointToComplex /@ polygon, etc., I believe. $\endgroup$ Commented Aug 14, 2012 at 13:40
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    $\begingroup$ @Mr. Wizard, if they're explicitly numbers (i.e. passes NumberQ[] but not NumericQ[]). Complex @@ {1, Pi} won't work, for instance. $\endgroup$ Commented Aug 14, 2012 at 15:34
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    $\begingroup$ I think this is the first time that code has made me laugh (at least for positive reasons), so +1! $\endgroup$ Commented Aug 14, 2012 at 15:57
  • $\begingroup$ @Mr.Wizard Thanks for the hint! Applying Complex didn't cross my mind when i wrote the code. @J.M. interesting detail, never looked at how Mathematica handles complex number representation! $\endgroup$ Commented Aug 15, 2012 at 8:32
  • $\begingroup$ @acl Ha, glad to hear that :) was definitely worth posting then ;) $\endgroup$ Commented Aug 16, 2012 at 22:48