Hi, I am trying to calculate the capacitance of a non-parallel plate capacitor and there has been few discussions on this research in this forum. Some of the people have pointed to this material by Fred Erickson, The material link is not valid anymore. I was wondering if anybody has downloaded this material and could share with me. http://www.ttc-cmc.net/~fme/captance.html [Broken] http://www.ttc-cmc.net/~fme/plates.12-24-00.ps.gz [Broken] Any help would be greatly appreciated. Thank you.