Hello, I have coded a solver for real univariate rational inequalities. Is there already something like this in Maxima? (%i8) solve_rat_ineq(x/2+2/x>2); (%o8) [[x > 0, x < 2], [x > 2]] (%i9) solve_rat_ineq(x/2+2/x<=2); (%o9) [[x < 0], [x = 2]] FWIW Volker van Nek