OK Michael, thanks for this. But my problem was
solve(sin(x)/cos(x)==1,x,to_poly_solve="force") returns an empty solution set, implying that there are no solutions when in fact there are. Surely this is misleading? Worthy of a bug report? IDK best wishes Robin On Wed, Jun 12, 2013 at 8:54 AM, Michael Orlitzky <mich...@orlitzky.com> wrote: > On 06/11/2013 04:43 PM, robin hankin wrote: >> hello. Sage 5.9: >> >> sage: solve(sin(x)/cos(x)==1,x,to_poly_solve="force") >> [] >> >> >> >> I find this unexpected because pi/4 is a solution, and sage seems to >> indicate that there are no solutions. >> >> >> Sage can handle the equation if I do some preprocessing: >> >> sage: solve(tan(x)==1,x,to_poly_solve='force') >> [x == 1/4*pi + pi*z219] >> > > Try to_poly_solve=True. > > > -- > 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 sage-support+unsubscr...@googlegroups.com. > To post to this group, send email to sage-support@googlegroups.com. > Visit this group at http://groups.google.com/group/sage-support?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > -- Robin Hankin Uncertainty Analyst hankin.ro...@gmail.com -- 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 sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en. For more options, visit https://groups.google.com/groups/opt_out.