Hi,
I've perhaps missed something. I observe that now the every atom is complex by
default. I think it is not very suitable, e.g., I need to get the realpart of
tensor expression. To make the realpart() works I have to declare everything
real. It also does not work for special tensors like 'levi_civita because it
is with coma ahead. The way around is to make subst([%i=0], expand(expr)).
As I remember, 2 or 3 years ago there was not default complexification.
I discovered it because my previous code does not work on the current maxima
version. I wonder if there is a switch to make all atoms real by default?
best wishes
Valery