3d parametric eqn 3d parametric eqn3 3d parametric 3d parametric2 3d parametric3 Grapher3d parameteric001 Grapher3d parameteric001 parametric sin 2t 2 sin 2t sinx etc sinxcosy+z sinxx etc sinxx-sinyy+coszzetc sinxx-sinyyetc x4etc xyz