Re: Sorting complex values

[Ben Abbott]

On Sep 27, 2014, at 2:43 PM, Daniel J Sebald <address@hidden> wrote:

> The one thing that concerns me a bit is that -1 - 0i produces an angle of -pi.

I'm confident this behavior is correct. There is a branch along the negative 
real axis ... i.e. a phase of +pi and -pi are both correct, but only one of 
them is proper by IEEE standards.  To determine the phase it is necessary to 
determine if the imaginary part is positive or negative.  The default is to 
assume the imaginary part is positive. In the case, of 1 - 0i, the default has 
been over-ridden.

Ben