Hi Everyone, First time poster, longtime viewer of these forums. Love the help that the community gives. Just so you know where I am coming from: I am trying to calculate the average power by first calculating the total energy of my system. Specifically I am looking at the energy dissipated in a damper, Cg. This turns out to be Cg multiplied by the integral of the velocity squared in my system over time (where Cg is fixed). However, each of the velocities of the system are made up of the addition of multiple waveforms oscillating at different frequencies. Their respective periods are as follows: 2Pi/w 2Pi/((n+1)*w) 2Pi/((2n+1)*w) Where "n" can be any number. In order to take the integration is done properly I need to find a common period amongst the added waveforms (squared). Now, this problem is fine so long as "n" is an integer, but once I allow it to have a decimal value the problem gets a bit more complicated. This has been racking my brain for the past couple days, any thoughts? I tried google, but of course it gave me common periods of different types of waves :P Cheers!