Hi,
Maxima says
(C39) 1/sqrt(x)-sqrt(1/x);
(D39) 0
but
(C40) 1/sqrt(-1)-sqrt(1/(-1));
(D40) -2*%I
This is inconsistent!
How is sqrt(x) treated in Maxima? I.e. is it multi valued (then it should be
treated as a set) or is it single valued (e.g. the complex number z with
Re(z)>=0 and z^2=x)?
Felix