Lisp - expanding space for Maxima in Windows



Thx Barton,

Your answer is very intresting.
This error message if often a min reason for posts.
Maybe some notes about it should be in Maxima doc ?

(I have found ALLOCATE in 3.2 Garbage Collection section, but it is not 
in index ).


Adam



Barton Willis pisze:
> I can only guess, but these are my estimates of likely hoods of three 
> possibilities:
> 
> (90%)  Either the equations don't have a solution in terms of radicals, or 
> they do but
>        the solution is so huge that it is worthless (ill-suited for 
> numerical evaluation,
>        gives no particular insight to the physical problem, ...)
> 
> (9.99%) A bug prevents Maxima from finding the solution.
> 
> (0.01%) Expanding the available memory will allow Maxima to find a useful 
> solution.
> 
> As for suggestions: either be satisfied with a numerical solution or try 
> some other CAS
> to try to solve them.
> 
> If you could post your equations, somebody might find a workaround (set 
> algebraic to true,
> try a Grobner basis, ...)
> 
> --Barton
> 
> maxima-bounces at math.utexas.edu wrote on 04/20/2010 04:19:00 AM:
> 
>> [image removed] 
>>
>> [Maxima] Lisp - expanding space for Maxima in Windows
>>
>> Brian Wylie 
>>
>> to:
>>
>> maxima
>>
>> 04/20/2010 04:19 AM
>>
>> Sent by:
>>
>> maxima-bounces at math.utexas.edu
>>
>> Hi,
>>
>> I am running into a Lisp error in wxMaxima on Windows XP:
>>
>> Maxima encountered a Lisp error:
>>  Error in PROGN [or a callee]: The storage for CONS is exhausted.
>> Currently, 14243 pages are allocated.
>> Use ALLOCATE to expand the space.
>> Automatically continuing.
>> To enable the Lisp debugger set *debugger-hook* to nil.
>>
>> Searching included help doesn't seem to be useful, and online archives
>> turn up a hit in google but doesn't give a solution on how to
>> allocate, or how much to allocate. I'm trying to perform the
>> following:
>>
>> solve([eq1, eq2, eq3, eq4, eq5, eq6, eq7, eq8, eq9], [sx, sy, sz, x0,
>> y0, z0, alpha, %beta, gamma]);
>>
>> where eq1...eq9 are horribly nonlinear. Suggestions?
>>
>> Kind regards,
>> Brian
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