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

[Michael D. Godfrey]

On 09/23/2012 02:09 PM, Rik wrote:

Octave's behavior is defined by the ISO/IEC 9899 standard.  First, that means
that atan2 is defined over the range [-pi,pi] inclusive.  Second, the behavior
of special values is mandated in section Annex F.9.1.4.  I'll quote them for
ease.  I don't know if it is worth documenting them all inside Octave or
whether you want to write a patch that refers to the ISO standard.

This is very helpful.  I will work on a documentation patch.  Unless
you think otherwise, it would seem best to refer to the ISO standard
(I assume that it is available on the web).

Have you checked that atan2 actually matches the standard?
I will also check on what Matlab thinks.

Michael