![]() Geodesic spray starting at a point. We see the geodesics and the wave fronts. This is the flow starting at (0,0) on the graph of the function f(x,y) = 0.6( cos(2 x) - Sin[y-0.1)). |
![]() Same picture on the physical graph of f(x,y) = 0.6( cos(x) - Sin[y-0.1)). |