Looking for a 64-bit build with large memory limit

On 06/12/2007, andre maute <andre.maute at gmx.de> wrote:
> On Thursday 06 December 2007, you wrote:
> > On 05/12/2007, Stavros Macrakis <macrakis at alum.mit.edu> wrote:
> > > On Dec 5, 2007 3:36 PM, Paul Richards <paul.richards at gmail.com> wrote:
> > > > > > ...I think it has an 8GiB limit by default, which for what I'm
> > > > > > trying
> > >
> > > to
> > >
> > > > solve still wasn't enough.
> > > >
> > > > > What kind of equations are they?
> > > >
> > > > ...
> > > > (The crux of the equation is tri-linear interpolation between 8
> > > > vectors.)
> > >
> > > So you're generating the 3 equations and calling solve, and it is running
> > > out of memory?  I would suspect an infinite loop/recursion, and would not
> > > expect that more memory would help.  What's more, I'd expect the
> > > solution, if it exists in closed form, to be enormous.  What would you do
> > > with it?
> >
> > I'd search for Maxima's "export expression to C code" function; then
> > paste it into my program and see if it's any faster than the numerical
> > solver I implemented as a stop gap while waiting on finding a closed
> > form solution..
> >
> > To be honest the numerical solver I have is accurate and fast enough
> > already.  Though, I'm still curious to see if a closed form solution
> > exists and would be faster...
>
> Do you have a closed form for the 2-dimensional case?
>

Yes.  Maxima can solve the 2D case in the blink of an eye.



-- 
Paul Richards