- sage: K = random_cone(max_dim = 8, solid=False, strictly_convex=False)
- sage: K_W = rho(K, K.dual())
- sage: K_star_W_star = rho(K.dual()).dual()
+ sage: J = random_cone(max_dim = 8, solid=False, strictly_convex=False)
+ sage: K = Cone(random_sublist(J.rays(), 0.5), lattice=J.lattice())
+ sage: K_W = rho(K, J)
+ sage: K_star_W_star = rho(K.dual(), J).dual()