2011/9/17 Stéfan van der Walt
> On Sat, Sep 17, 2011 at 9:40 AM, Charles R Harris
> wrote:
> > The Vandermonde matrix needs to be used for the fitting so nothing should
> be
> > changed there.
>
> I remember now where I heard this:
>
> http://people.maths.ox.ac.uk/trefethen/mythstalk.pdf
>
> Spe
On Sat, Sep 17, 2011 at 9:40 AM, Charles R Harris
wrote:
> The Vandermonde matrix needs to be used for the fitting so nothing should be
> changed there.
I remember now where I heard this:
http://people.maths.ox.ac.uk/trefethen/mythstalk.pdf
Specifically, the statement: "Some well-known algorith
On Sat, Sep 17, 2011 at 10:40 AM, Charles R Harris <
charlesr.har...@gmail.com> wrote:
>
>
> 2011/9/14 Stéfan van der Walt
>
>> Hi all,
>>
>> There were some failures in the polynomial tests earlier today, and
>> while investigating I saw that numpy.ma implements its own root
>> finder. It uses
2011/9/14 Stéfan van der Walt
> Hi all,
>
> There were some failures in the polynomial tests earlier today, and
> while investigating I saw that numpy.ma implements its own root
> finder. It uses inversion of a Van der Monde matrix, which I believe
> may suffer from some numerical instability pr
Hi all,
There were some failures in the polynomial tests earlier today, and
while investigating I saw that numpy.ma implements its own root
finder. It uses inversion of a Van der Monde matrix, which I believe
may suffer from some numerical instability problems. Given that
Charles has gone to som
