On Wed, Oct 1, 2008 at 2:45 PM, Leo Butler <l.butler at ed.ac.uk> wrote:
> Maxima 5.10.0 http://maxima.sourceforge.net
> (%i1) t: makelist(makelist(i+j,i,0,2),j,0,3);
> (%o1) [[0, 1, 2], [1, 2, 3], [2, 3, 4], [3, 4, 5]]
> (%i2) write_data(t,"test.data");
> (%o2) write_data([[0, 1, 2], [1, 2, 3], [2, 3, 4], [3, 4, 5]],
> test.data)
Leo, I think you need to put load(numericalio); before the first call
to write_data or other numericalio functions.
In more recent versions, those functions are loaded automatically.
You might want to get a newer version of Maxima.
There have been a lot of bug fixes & other changes since 5.10.
HTH
Robert Dodier