>>>>> "BW" == Barton Willis <willisb at unk.edu> writes: BW> (%i3) %solve(sin(x)-sqrt(3)*cos(x)=0,x); Oh. Dumb. I misinterpreted the % as a prompt; I forgot that to_poly's solve is called %solve. I did try load()ing it, but then still ran solve().... ? Thanks. -JimC -- James Cloos <cloos at jhcloos.com> OpenPGP: 1024D/ED7DAEA6