[Octave-bug-tracker] [bug #37379] atan2 and other trig functions lack documentation

[Michael Godfrey]

Follow-up Comment #17, bug #37379 (project octave):

I looked at lo-mappers.cc.  It appears that
something like what is below would be a start,
but a serious numerical C++ person should take a look.

This should go somewhere after line 249 in lo-mappers.cc:

i.e., after:  // (complex, complex) -> complex mappers.

Complex
atan2 (const Complex& x, const Complex& y)
{
  return 2 * atan((sqrt (x)^2 + (y)^2 - (x) ) / (y) ); 
}
=====================================

This does not handle the exceptions and quadrants
as far as I can tell, but it may be a start.

Uniformity would definitely be enhanced if atan2 can
be integrated with the other trig functions in 
lo-mappers.cc.

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