-----maxima-bounces at math.utexas.edu wrote: -----
>Thanks,??rootscontract??solved?problem,?but?i?think?that??disabling?of?
>sqrt(a*b)?-->?sqrt(a)*sqrt(b)?in?solve()?is?better?solution.
Assuming that powers are the principal powers, rootscontract does simplifications that are not
valid in the entire complex plane. In the context of the solution to a polynomial system, I would
generally expect rootscontract to map a solution into another solution--nevertheless, be careful
using rootscontract.
I think you have not given any evidence that solve is changing sqrt(a*b) to sqrt(a) * sqrt(b).
Neither have you given any evidence that Maxima returns an incorrect solution to your equations.
--Barton