Pavel,
Nice, what is the difference between these and the previous ones? In
terms of the periodicity, I think that yes, it is known. It should be
pretty simple for work out a simple analytical expression for the
period. That is one way that we can check to make sure we are solving
the equations correctly and I plan on doing that. I am finishing
grading finals today, so I almost done with the quarter. Whew.
Cheers,
Brian