%md ## Devoir n.7, question n. 3
a=1 b=3 %var s, t fx = cos(s)*(b + a*cos(t)) fy = sin(s)*(b + a*cos(t)) fz = a*sin(t)
Tore = parametric_plot3d([fx,fy,fz], (s,0,2*pi), (t,0,2*pi), color="green", opacity = 0.3, mesh = 0, spin = 5) show(Tore)
