Relativistic addition of velocities in wxMaxima



Hi everyone!

i meet the following strange behavior:

Maxima 5.31.0 http://maxima.sourceforge.net
using Lisp GNU Common Lisp (GCL) GCL 2.6.8 (a.k.a. GCL)
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) x^2;
                                                            2
(%o1)                                                      x
(%i2) subst(1e-3,x,%o1);
(%o2)                                                    0.0E-7

I checked and this is a display problem only. The underlying value is
correct (different to zero).
I checked both with Xmaxima and command line Maxima.

Best regard.

Laurent.