Force field curves Integral curves of the differential equation with . Initial conditions are on the unit circle (shown in gray) in the . Integral curves of Newton’s second law with . Initial conditions are on the unit circle (shown in gray) in the ; for all curves. Newtonian vector field integral curves Integral curves of the Newtonian vector field of . Initial conditions are on the unit circle (shown in gray) in the . Force field curves of the real and imaginary parts of the function Integral curves of the differential equations and with . Initial conditions are on the unit circle (shown in gray) in the . In the right picture all curves stay on the unit circle. Integral curves of Newton’s second law in the potentials and . Initial conditions are on the unit circle (shown in gray) in the .
