If you make a misspelling in spacecurve as in
plots:-spacecurve([ARctan(t),t,t], t=0..10);
then Maple 13.02 (Standard) loses contact with the kernel.
Even if you forget 't =' as in
plots:-spacecurve([ARctan(t),t,t],0..10);
Maple will lose contact.
It seems that also Maple 12 has a problem.
Maple 13 Classic doesn't have the problem.
Will these and other 3d-plot problems be corrected in Maple 14?
Preben Alsholm
