[Patches] [ python-Patches-544909 ] addition of cmath.arg function

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Patches item #544909, was opened at 2002-04-16 18:11
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Category: Modules
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: John Williams (johnw42)
Assigned to: Nobody/Anonymous (nobody)
Summary: addition of cmath.arg function

Initial Comment:
This patch adds the familiar "Arg" function from
complex analysis to the cmath module, though it's
called "arg" here for consistency with the other names.
Along with the built-in abs function this makes
polar/rectangular coordinate conversions trivial:

  z = complex(x,y)
  r, theta = abs(z), arg(z)
  
  z = r * exp(1j * theta)
  x, y = z.real, z.imag

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>Comment By: John Williams (johnw42)
Date: 2002-04-19 12:38

Message:
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I forgot to mention this patch is relative to version 2.2.1.

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