[SciPy-dev] Numerical Recipes (was tagging 0.7rc1 this weekend?)

Charles R Harris charlesr.harris@gmail....
Sat Dec 6 02:19:26 CST 2008


On Fri, Dec 5, 2008 at 9:18 PM, Jarrod Millman <millman@berkeley.edu> wrote:

> On Wed, Dec 3, 2008 at 1:59 PM, Alan G Isaac <aisaac@american.edu> wrote:
> > As for `ridder` and `brentq`, I hardly think NR
> > would have a hope of copyrighting anything but
> > their actual code implementing these.
> > A classic reference should be given in any case:
> >
> > Ridders, C. F. J. "A New Algorithm for Computing a
> > Single Root of a Real Continuous Function."
> > IEEE Trans. Circuits Systems 26, 979-980, 1979.
>
> Hello Alan,
>
> Would you be willing to take care of `ridder` and `brentq`?  If you
> are willing, I would appreciate it if you could verify that our
> implementations are not derived from the Numerical Recipes code.  The
> docstrings for these two functions seem to indicate that the code
> differs from that in Numerical Recipes, so you may be able to find
> references for our implementations.
>
> Hopefully you could do somethings like Josef did for ks2_samp:
>  http://projects.scipy.org/scipy/scipy/changeset/5223
>
> Since we need to make sure we aren't violating the Numerical Recipes'
> license (now that we have become aware of it) before releasing 0.7.0,
> I hope that you will be able to take care of this ASAP.
>

Hi Jarrod,

I wrote the routines. They are similar too, but not the same as the NR
versions.

Chuck
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