> Most importantly, does that set algexact for the whole Maxima session, or does it then revert to false?
The assignment to algexact is internal to the relevant functions in to_poly_solve.mac. After exiting
from %solve (or to_poly_solve), algexact reverts to its previous value. If this isn't the case, it's a bug.
By entering setcheck :['algexact], you can watch the value of algexact flip flop and finally revert to its
previous value.
--Barton