On Feb 18, 2008 9:09 PM, William Stein <[EMAIL PROTECTED]> wrote:
>
> On Feb 18, 2008 6:04 PM, David Joyner <[EMAIL PROTECTED]> wrote:
> >
> > On Feb 18, 2008 8:29 PM, Ben Goodrich <[EMAIL PROTECTED]> wrote:
> > >
> > > On Feb 18, 3:58 pm, "David Joyner" <[EMAIL PROTECTED]> wrote:
> > > > I believe Sage simply calls Maxima for the solution. Since you
> > > > obviously know the
> > > > most about the problem, perhaps the easiest thing to do would be to
> > > > determine
> > > > that it is Sage and not Maxima that is at fault. Perhaps you could see
> > > > if
> > > > the solution is obtained in Maxima? (On the command line of Sage, you
> > > > can simply type "maxima_colsole()"; in the notebook I believe there is
> > > > a drop down
> > > > menu for maxima mode.)
> > > >
> > >
> > > I tried running it via maxima mode under the Online Notebook, but it
> > > ran for about an hour without producing any output. In SAGE mode, it
> >
> > To me that suggests a Maxima bug.
> >
> > > (now) produces something in a few seconds. So, I think I would be okay
> >
> > Something *correct*?
> >
> > > if I knew how to interpret the output. For example, what does the r35
> > > mean in "lambda_42: r35"? This syntax does not seem to appear in the
> >
> > I don't see how that contains debugging info. I thin it means it is the
> > 35th R-expression that Sage has had to keep track of to run that
> > particular session.
> >
>
> No, Maxima creates variables r[number] for each free
What I said makes no sense - R isn't even running. Time to quit
for the night!
> parameter in the solution set it finds to a problem, e.g.,:
>
> sage: var('x,y')
> (x, y)
> sage: solve(3*x+5*y+7==0,[x,y])
> [[x == (-5*r1 - 7)/3, y == r1]]
> sage: var('x,y,z')
> (x, y, z)
> sage: solve(3*x+5*y+7*z+13==0,[x,y])
> [[x == (-7*z - 5*r2 - 13)/3, y == r2]]
>
>
> >
>
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