Lorenz'83 Attractor

The Lorenz'83 attractor is a 3-dimensional attractor produced by the following equation:

xn+1 = xn +( -axn -yn2 -zn2 +ac )dt yn+1 = yn +( -yn +xnyn +bxnzn+d )dt zn+1 = zn +( -zn +bxnyn +xnzn )dt
Lorenz'83 attractor