Comment 5 for bug 192134

Subject: Re: Slow sine function for special values on AMD64
 - second attempt

On Thu, 21 Feb 2008, jakub at redhat dot com wrote:

> which ensures <= 0.5ulp error. Trigonometric etc. functions are
> computed using floating point computations, but if the possible error
> from that is too high, it uses slower multiprecision computation to
> guarantee ultimate precise result. Guess you just picked some worst-case
> values.

Note that the crlibm developers were willing to contribute their code, an
advantage of which is *much* better worst-case performance.