numerical solutions to differential equations

Daniel -
I hope this is sent in plain text as I changed the preferences. 
Mathematica has a convenient method for returning an interpolating 
functions for numerical solutions to odes. It is simple and pretty 
straightforward, even for mma. One can plot so easily with such a 
functionality.

Thanks,
Dick

Daniel Lakeland wrote:
> Hi Richard,
>
> I'm not sure what the policy is, but in general this list doesn't use
> HTML messages. I found yours hard to read due to the fact that I use a
> text mode email reader.
>
> On Fri, Feb 23, 2007 at 09:59:42AM -0500, richard noel fell wrote:
>
>   
>> Thanks for your reply. Two more questions. Am I correct in assuming
>> that maxima as of yet does not have a mechanism to return an
>> interpolating function as the numerical solution to an ode?
>>     
>
> Maxima doesn't have this built in, but for a project I worked on
> recently I built a special purpose spectral method solver, it was
> relatively easy. I would be happy to create a more generic one based
> on my code, but I'm not sure what the interface should be. I'd be
> happy to have suggestions as to how one would want to use such a
> feature. (what information to give it and what sort of thing to return)
>
>   
>> <br>
>> Second, I do has suggested below and find the the output to
>> describe("rk") to be<br>
>> "System variable: tensorkill<br>
>> Variable indicating if the tensor package ......<br>
>>     
>
> I had this problem too. you need to install the maxima-doc package.
>
>   

-- 
Richard N. Fell
Martin Fisher School of Physics
Brandeis University
Waltham, Ma 02454
fell at brandeis.edu
781-736-2860