Hi Robert
>which appears to come from the definition of @ in cartan_new.lisp.
>dispfun("@") shows "for i from dim step -1 thru 0 do ..." and that
>seems to cause the problem because basis[i] is in the loop.
>After changing "thru 0" to "thru 1", the rest of the example seems
>to work as shown in surface_example.txt.
>Should we change cartan_new.lisp (line 56) accordingly ??
thank you,this is OK. On my 5.9.3 with gcl it is not trouble but
thru 1 is correct program. Would you please test lorentz_example.txt?
thanks
Gosei Furuya
2006/10/30, Robert Dodier <robert.dodier at gmail.com>:
>
> Hello Gosei,
>
> Thanks very much for sending the differential forms package.
> This is terrific! This will be a great addition to Maxima's capability.
>
> I have committed the files to maxima/share/diff_form/,
> in the process renaming cartan_init.bat to diff_form.mac
> and renaming new_cartan_test4.bat to new_cartan_test4.mac,
> and removing load(...) from new_cartan_test4.mac.
>
> I was working through surface_example.txt and I ran into the following
> problem.
> d(translist);
> => No such list element: [0]
>
> which appears to come from the definition of @ in cartan_new.lisp.
> dispfun("@") shows "for i from dim step -1 thru 0 do ..." and that
> seems to cause the problem because basis[i] is in the loop.
> After changing "thru 0" to "thru 1", the rest of the example seems
> to work as shown in surface_example.txt.
> Should we change cartan_new.lisp (line 56) accordingly ??
>
> Thanks again for your contribution to Maxima. I appreciate it a lot.
>
> Robert Dodier
>