you could try this:
Michael Goffioul
Feb 22
to Octave
For people interested, I've compiled the current default branch and a bunch
of forge packages. The resulting installer is available at this address:
http://dl.dropbox.com/u/45539519/octave-3.7.2%2B-vs2010-setup.exe
On Fri, Mar 8, 2013 at 7:40 PM, Ether Jones <maxima at etherjones.us> wrote:
>
> The script I want to write requires quite a bit of symbolic manipulation
> before doing the numerics so I'd rather remain in Maxima since I've used it
> on and off for a few years and have had some success with it.
>
> I'm familiar with Octave but have been waiting for a stable native binary
> distro for Windows. Is there one you recommend?
>
>
> ------------------------------
> *From:* Przemek Klosowski <przemek.klosowski at nist.gov>
> *To:* Ether Jones <maxima at etherjones.us>
> *Sent:* Friday, March 8, 2013 11:19 AM
> *Subject:* Re: [Maxima] QR factorization & backsubstitution
>
> On 03/07/2013 08:01 PM, Ether Jones wrote:
> > Does Maxima have QR factorization built in?
> >
> > i.e. A = Q*R
> >
> > where A has more rows than columns, Q is orthogonal, and R is upper
> > triangular?
> >
> > Also, does Maxima have a backsubstitution method, so that
> > the overdetermined linear system Ax~b can be solved using QR
> > factorization by solving Rx=Q'b by backsubstitution?
>
> Since you're asking for a numerical solution, I would recommend using a
> numerics-oriented package such as Octave, which indeed has QR and
> backsubstitution. I am pretty sure that Maxima can get access to the same
> functionality (it's LAPACK after all) but you may need some extra work to
> get to it while it's bread and butter to Octave which is a FOSS Matlab
> clone in case you're not familiar with it.
>
>
>
>
>
>
> _______________________________________________
> Maxima mailing list
> Maxima at math.utexas.edu
> http://www.math.utexas.edu/mailman/listinfo/maxima
>
>
--
DAS
https://linuxcounter.net/user/206392.html