On Tue, Nov 15, 2011 at 6:41 PM, Luke <hazelnu...@gmail.com> wrote: > Alan, > Looks good, thanks. Yeah, Lagrange's method is the way to go on > this problem, the reason I chose to do F=ma directly was purely > because the problem is targeted towards a freshman audience and they > won't be familiar with that approach at this point in their careers. > > You are correct that the length of the pendulum is not needed if you > want the displacement in the x or y directions (l cancels out). It is > needed, however, if you want the amplitude of the angular > displacements (see the last equation on page three of the pdf you sent.
I clicked send too quickly.. ~Luke -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sympy@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
