Problem calling math.cos()

Robert Kern robert.kern at gmail.com
Sat Apr 22 17:32:04 EDT 2006


Tim Peters wrote:
> [Robert Kern]
> 
>>...
>>    ph3 = math.atan( ac3.imag / ac3.real )
>>...
> 
> Don't do that:  atan2 is the correct way to compute the angle, because
> the signs of both inputs are needed to determine the correct quadrant.
>  So do:
> 
>      ph3 = math.atan2(ac3.imag, ac3.real)
> 
> instead.

Hey, I just copied his code to show that it gave a different error than the one
he said. I didn't bother to fix it.  :-)

-- 
Robert Kern
robert.kern at gmail.com

"I have come to believe that the whole world is an enigma, a harmless enigma
 that is made terrible by our own mad attempt to interpret it as though it had
 an underlying truth."
  -- Umberto Eco




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