Here's an exposition on the math: http://hippomath.blogspot.com/2011/06/pendulum-waves-mathematical-description.html http://hippomath.blogspot.com/2011/06/pendu

Here's an exposition on the math: http://hippomath.blogspot.com/2011/06/pendulum-waves-mathematical-description.html http://hippomath.blogspot.com/2011/06/pendulum-waves-mathema...