Plot a sphere, which is parametrically de ned as [x(t; s); y(t; s); z(t; s)] = [cos(t) cos(s); cos(t) sin(s); sin(t)] for t; s = [0; 2 ] (use surf).

Plot a sphere, which is parametrically de ned as [x(t; s); y(t; s); z(t; s)] =
[cos(t) cos(s); cos(t) sin(s); sin(t)] for t; s = [0; 2 ] (use surf).