Re: Proposal: Trigonometric functions in degrees

On 25 October 2015 at 09:16, Emre Hasegeli <emre@hasegeli.com> wrote:
>> Currently PostgreSQL only has trigonometric functions that work in
>> radians. I think it would be quite useful to have an equivalent set of
>> functions that worked in degrees. In other environments these are
>> commonly spelled sind(), cosd(), etc.
>
> I would prefer gradian over degree.

I think gradians are generally less commonly used than degrees and
radians, so I'm less inclined to include them.

Having degree-based functions would make it trivial to implement
user-defined gradian-based functions, just by multiplying or dividing
by 0.9, and they would return exact results in the smaller number of
cases where gradian results are exactly representable.

Regards,
Dean