On Sun, Jan 31, 2016 at 9:01 PM, Piotr Stefaniak
<postgres@piotr-stefaniak.me> wrote:
> - result = sign * cosd_q1(arg1) / sind_q1(arg1);
> + result = sign * ((cosd_q1(arg1) / sind_q1(arg1)) / cot_45);
>
> and
>
> - result = sign * sind_q1(arg1) / cosd_q1(arg1);
> + result = sign * ((sind_q1(arg1) / cosd_q1(arg1)) / tan_45);
>
> both introduce division by zero, don't they?
Per IEEE 754, division by 0 for a double results in Nan or +/-Inf, so
that's actually correct.
--
Michael
