Re: [Numpy-discussion] poly class question

2009-10-05 Thread Sebastian Walter
On Mon, Oct 5, 2009 at 4:52 PM, wrote: > On Mon, Oct 5, 2009 at 5:37 AM, Sebastian Walter > wrote: >> On Fri, Oct 2, 2009 at 10:40 PM, wrote: >>> On Fri, Oct 2, 2009 at 3:38 PM, Charles R Harris >>> wrote: On Fri, Oct 2, 2009 at 12:30 PM, wrote: > > On Fri, Oct 2, 2009

Re: [Numpy-discussion] poly class question

2009-10-05 Thread josef . pktd
On Mon, Oct 5, 2009 at 5:37 AM, Sebastian Walter wrote: > On Fri, Oct 2, 2009 at 10:40 PM,   wrote: >> On Fri, Oct 2, 2009 at 3:38 PM, Charles R Harris >> wrote: >>> >>> >>> On Fri, Oct 2, 2009 at 12:30 PM, wrote: On Fri, Oct 2, 2009 at 2:09 PM, Charles R Harris wrote: > >>>

Re: [Numpy-discussion] poly class question

2009-10-05 Thread Sebastian Walter
On Fri, Oct 2, 2009 at 10:40 PM, wrote: > On Fri, Oct 2, 2009 at 3:38 PM, Charles R Harris > wrote: >> >> >> On Fri, Oct 2, 2009 at 12:30 PM, wrote: >>> >>> On Fri, Oct 2, 2009 at 2:09 PM, Charles R Harris >>> wrote: >>> > >>> > >>> > On Fri, Oct 2, 2009 at 11:35 AM, Charles R Harris >>> > wr

Re: [Numpy-discussion] poly class question

2009-10-02 Thread josef . pktd
On Fri, Oct 2, 2009 at 3:38 PM, Charles R Harris wrote: > > > On Fri, Oct 2, 2009 at 12:30 PM, wrote: >> >> On Fri, Oct 2, 2009 at 2:09 PM, Charles R Harris >> wrote: >> > >> > >> > On Fri, Oct 2, 2009 at 11:35 AM, Charles R Harris >> > wrote: >> >> >> >> >> >> On Fri, Oct 2, 2009 at 11:33 AM,

Re: [Numpy-discussion] poly class question

2009-10-02 Thread Charles R Harris
On Fri, Oct 2, 2009 at 12:30 PM, wrote: > On Fri, Oct 2, 2009 at 2:09 PM, Charles R Harris > wrote: > > > > > > On Fri, Oct 2, 2009 at 11:35 AM, Charles R Harris > > wrote: > >> > >> > >> On Fri, Oct 2, 2009 at 11:33 AM, Charles R Harris > >> wrote: > >>> > >>> > >>> On Fri, Oct 2, 2009 at 11:

Re: [Numpy-discussion] poly class question

2009-10-02 Thread josef . pktd
On Fri, Oct 2, 2009 at 2:09 PM, Charles R Harris wrote: > > > On Fri, Oct 2, 2009 at 11:35 AM, Charles R Harris > wrote: >> >> >> On Fri, Oct 2, 2009 at 11:33 AM, Charles R Harris >> wrote: >>> >>> >>> On Fri, Oct 2, 2009 at 11:30 AM, Charles R Harris >>> wrote: On Fri, Oct 2, 20

Re: [Numpy-discussion] poly class question

2009-10-02 Thread Charles R Harris
On Fri, Oct 2, 2009 at 11:35 AM, Charles R Harris wrote: > > > On Fri, Oct 2, 2009 at 11:33 AM, Charles R Harris < > charlesr.har...@gmail.com> wrote: > >> >> >> On Fri, Oct 2, 2009 at 11:30 AM, Charles R Harris < >> charlesr.har...@gmail.com> wrote: >> >>> >>> >>> On Fri, Oct 2, 2009 at 11:08 AM

Re: [Numpy-discussion] poly class question

2009-10-02 Thread Charles R Harris
On Fri, Oct 2, 2009 at 11:33 AM, Charles R Harris wrote: > > > On Fri, Oct 2, 2009 at 11:30 AM, Charles R Harris < > charlesr.har...@gmail.com> wrote: > >> >> >> On Fri, Oct 2, 2009 at 11:08 AM, wrote: >> >>> Is there a way in numpy (or scipy) to get an infinite expansion for >>> the inverse of

Re: [Numpy-discussion] poly class question

2009-10-02 Thread Charles R Harris
On Fri, Oct 2, 2009 at 11:30 AM, Charles R Harris wrote: > > > On Fri, Oct 2, 2009 at 11:08 AM, wrote: > >> Is there a way in numpy (or scipy) to get an infinite expansion for >> the inverse of a polynomial (for a finite number of terms) >> >> np.poly1d([ -0.8, 1])**(-1) >> >> application for ex

Re: [Numpy-discussion] poly class question

2009-10-02 Thread Charles R Harris
On Fri, Oct 2, 2009 at 11:08 AM, wrote: > Is there a way in numpy (or scipy) to get an infinite expansion for > the inverse of a polynomial (for a finite number of terms) > > np.poly1d([ -0.8, 1])**(-1) > > application for example the MA representation of an AR(1) > > Hmm, I've been working on a

[Numpy-discussion] poly class question

2009-10-02 Thread josef . pktd
Is there a way in numpy (or scipy) to get an infinite expansion for the inverse of a polynomial (for a finite number of terms) np.poly1d([ -0.8, 1])**(-1) application for example the MA representation of an AR(1) and fractional powers np.poly1d([ -1, 1])**0.5 this is useful for fractionally i