[Maxima] numerical methods gone missing?

Sat Jun 10 22:28:55 CDT 2006

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Ah, ok. So its a simple case of us using the wrong version of the
documentation (or wrong version of the program). I wouldn't have thought
that a two number difference in the third element of the version number
would have mattered.

Thank you for your time,
James Supancic

On 6/10/06, Yasuaki Honda <yhonda at mac.com> wrote:
>
> Hi James,
>
> Just for the clarity, on using Maxima 5.9.3, the find_root()
> works as documented in the latest online manual:
>
> Maxima 5.9.3 http://maxima.sourceforge.net
> Using Lisp CMU Common Lisp 19c (19C)
> Distributed under the GNU Public License. See the file COPYING.
> Dedicated to the memory of William Schelter.
> This is a development version of Maxima. The function bug_report()
> provides bug reporting information.
> (%i1) find_root (sin(x) - x/2, x, 0.1, %pi);
> (%o1)                          1.895494267033981
> (%i2)
>
> Yasuaki Honda
>
> On 2006/06/11, at 9:13 AM, van Nek wrote:
>
> > Am 10 Jun 2006 um 14:31 hat James Supancic geschrieben:
> >
> > >
> > > numerical methods gone missing?
> > >
> > > I am trying to help someone on the freenode #maximia IRC channel,
> > they would like to use the
> > > find_root function as documented in in the Maximia manual.
> > >
> > > However, any attempt to use the function, such as
> > >
> > > find_root (sin(x) - x/2, x, 0.1, %pi);
> > >
> > > fails by returning a slightly modified version of itself,
> > basically the output is
> > > find_root (sin(x) - x/2, x, 0.1, %pi);
> > > with some minor formatting changes.
> > > In the manuals example the result should have been
> > >
> > > 1.895494267033981
> > >
> > > I suspect that we do not have the proper numerical module loaded?
> > I tried loading a bunch of
> > > stuff out of /usr/share/maxima/5.9.1, and it failed to fix the
> > problem.
> > >
> > > What must we do to get the find_root function to work as advertised.
> > >
> > > Thank you for your time,
> > > James Supancic
> > >
> >
> > Hi James,
> >
> > I read that you are using 5.9.1.
> >
> > In 5.9.1 and 5.9.2 this function is called 'interpolate'
> >
> > 5.9.1/2: interpolate(sin(x) - x/2, x, 0.1, %pi); --> 1.895494267033981
> >
> > 5.9.3: find_root (sin(x) - x/2, x, 0.1, %pi); --> 1.895494267033981
> >
> > Volker
>
> _______________________________________________
> Maxima mailing list
> Maxima at math.utexas.edu
> http://www.math.utexas.edu/mailman/listinfo/maxima
>

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Ah, ok. So its a simple case of us using the wrong version of the
documentation (or wrong version of the program). I wouldn't have
thought that a two number difference in the third element of the
version number would have mattered. 
 
Thank you for your time, 
James Supancic <div>On 6/10/06, Yasuaki Honda &lt;<a href="mailto:yhonda at mac.com">yhonda at mac.com</a>&gt; wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi James, Just for the clarity, on using Maxima 5.9.3, the find_root() works as documented in the latest online manual: Maxima 5.9.3 <a href="http://maxima.sourceforge.net">http://maxima.sourceforge.net</a>
 Using Lisp CMU Common Lisp 19c (19C) Distributed under the GNU Public License. See the file COPYING. Dedicated to the memory of William Schelter. This is a development version of Maxima. The function bug_report()
 provides bug reporting information. (%i1) find_root (sin(x) - x/2, x, 0.1, %pi); (%o1)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.895494267033981 (%i2) Yasuaki Honda On 2006/06/11, at 9:13 AM, van Nek wrote: 
 &gt; Am 10 Jun 2006 um 14:31 hat James Supancic geschrieben: &gt; &gt; &gt; &gt; &gt; numerical methods gone missing? &gt; &gt; &gt; &gt; I am trying to help someone on the freenode #maximia IRC channel,
 &gt; they would like to use the &gt; &gt; find_root function as documented in in the Maximia manual. &gt; &gt; &gt; &gt; However, any attempt to use the function, such as &gt; &gt; &gt; &gt; find_root (sin(x) - x/2, x, 
0.1, %pi); &gt; &gt; &gt; &gt; fails by returning a slightly modified version of itself, &gt; basically the output is &gt; &gt; find_root (sin(x) - x/2, x, 0.1, %pi); &gt; &gt; with some minor formatting changes.
 &gt; &gt; In the manuals example the result should have been &gt; &gt; &gt; &gt; 1.895494267033981 &gt; &gt; &gt; &gt; I suspect that we do not have the proper numerical module loaded? &gt; I tried loading a bunch of
 &gt; &gt; stuff out of /usr/share/maxima/5.9.1, and it failed to fix the &gt; problem. &gt; &gt; &gt; &gt; What must we do to get the find_root function to work as advertised. &gt; &gt; &gt; &gt; Thank you for your time,
 &gt; &gt; James Supancic &gt; &gt; &gt; &gt; Hi James, &gt; &gt; I read that you are using 5.9.1. &gt; &gt; In 5.9.1 and 5.9.2 this function is called 'interpolate' &gt; &gt; 5.9.1/2: interpolate(sin(x) - x/2, x, 
0.1, %pi); --&gt; 1.895494267033981 &gt; &gt; 5.9.3: find_root (sin(x) - x/2, x, 0.1, %pi); --&gt; 1.895494267033981 &gt; &gt; Volker _______________________________________________ Maxima mailing list
 <a href="mailto:Maxima at math.utexas.edu">Maxima at math.utexas.edu</a> <a href="http://www.math.utexas.edu/mailman/listinfo/maxima">http://www.math.utexas.edu/mailman/listinfo/maxima</a> </blockquote></div>

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