On Tuesday, February 19, 2019 at 8:56:50 AM UTC-8, Michael Beeson wrote: > > When I try to reproduce Eric's post, I get an error message about an > unexpected keyword argument > (maybe my version of Sage is too old.) But look at this: > > sage: solve(*2**(x+sqrt(*1*-x^*2*))-*7*,x,explicit_solutions=True) > > [1/4*I*sqrt(41) + 7/4 == -1/2*sqrt(7/2*I*sqrt(41) + 2), 1/4*I*sqrt(41) + > 7/4 == 1/2*sqrt(7/2*I*sqrt(41) + 2)] > > > That doesn't look like an "explicit solution" to me. > > How can I force solve to return only actual solutions, i.e. x = > something not containing x? > > > Here is what I see:
sage: solve(2*(x+sqrt(1-x^2))-7, x) [x == -sqrt(-x^2 + 1) + 7/2] sage: solve(2*(x+sqrt(1-x^2))-7, x, explicit_solutions=True) # it can't find any explicit solutions [] sage: solve(2*(x+sqrt(1-x^2))-7, x, to_poly_solve=True) [x == -1/4*I*sqrt(41) + 7/4, x == 1/4*I*sqrt(41) + 7/4] sage: solve(2*(x+sqrt(1-x^2))-7, x, algorithm='sympy') [x == -1/4*I*sqrt(41) + 7/4, x == 1/4*I*sqrt(41) + 7/4] -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
