Variable step size #2
Description
There ought to be a way to vary the step size of the simulation depending on the state of the simulation. For example in the probe being launched to the moon example, while the probe is travelling in an essentially straight line between the earth and the moon a larger step size can be used, but a smaller one is required once it gets closer to the moon.
This could be written in to the interface function of the gravity simulations. How 'intelligent' can we make the program in determining when to slow down the simulation?