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atan, does only span 0 - 90 degree angle or equivalently works only an x and y element of [0, 1].– Davoud Taghawi-NejadCommented Aug 20, 2012 at 13:38
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2Lev, of course I have trouble with the math and not a two statement programming task.– Davoud Taghawi-NejadCommented Aug 20, 2012 at 13:39
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1Davoud the reason you were asked about whether it was the math or the programming you had trouble with because you said "I would particularly like a solution in Python".– Mike VellaCommented Aug 20, 2012 at 13:41
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