On Wed, Nov 20, 2013 at 09:02:38AM -0800, Pablo Puente wrote:
>  > -    csc(z) + cot(z)
>  > +    cot(z) + csc(z)
> 
>    I saw this failing documentation test, for some reason the returned value
>    was in a different (wrong) order.
> 
>    I do not know how my changes might have corrected the order of the terms
>    in "cot(z) + csc(z)" expression

Don't take me wrong, it's nothing to do for you here.  I just
wonder why this happens.  Is the order here is deterministic?