I converted all terms (one by one) of the matrix (N_ap_nn) to float but maxima
can't invert, there is no error message but a big, big time ... that not end.
The matrix is invertible 'cause I could invert it in Octave...
(C254) for ii:1 while ii<=36 do(for jj:1 while jj<=36 do
N_ap_nn[ii][jj]:float(N_ap_nn[ii][jj]));
(D254) DONE
(C255) floatnump((N_ap_nn[3][36]));
(D255) TRUE
(C256) invert(N_ap_nn);
Quoting Richard Fateman <fateman@cs.berkeley.edu>:
> There is no explicit size limit. If there were such a limit
> it would presumably say so in an explicit message. I suggest you
> try converting all entries to floating point numbers. Perhaps you
> are running out of memory doing exact rational arithmetic.
> RJF
>
>
> alexandre@emc.ufsc.br wrote:
>
> >Maxima folks!
> >
> >I'm tryin to invert a 36x36 very sparse numerical matrix but maxima can't
> solve
> >it , Does exist some limit for the matrix size when inverting ??
> >
> >Thanks,
> >alexandre
> >
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