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Re: Trigonometric functions

On 01/09/2013 08:09 AM, Mischa Baars wrote:
> Thank you for the 2.17 distribution, which is finally compilable
> without any problems. People are now better able to help you!

Thank you!
> I have attached two files.
> The first example was one already placed on the mailing list earlier,
> now again with a few typing errors corrected.
> The second example compensates for the hardware errors as indicated
> in the first example.
> However, only three of the trigonometric functions are included, i.e.
> the ones used in rotations in the two-dimensional or complex plane.
> Should you need any other function, than I hope this example will be
> helpful enough to get you started.
> For processors without transcendental instruction set, I'm currently
> working on an improvement of the functions already included in the
> glibc distribution. I will get back to this.
> I will be happy to answer any of your questions.

If you plan to contribute to glibc please see:

Don't be overwhelmed! There's a lot to learn, but we're happy to
answer any questions on

For performance related issues we are also trying to document
exactly why and what testing was done in order to rationalize
the change e.g. For 2.17:


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