http://www.FEA-Forums.com/ FEA Forums » Topic: summation of Eigen functions en Sat, 13 Mar 2010 19:24:48 +0000 http://www.FEA-Forums.com/topic/27#post-32 Tue, 01 Jan 2008 07:57:47 +0000 hesamilati 32@http://www.FEA-Forums.com/ <p>Hi<br /> I have two equation in my problem ((1) Eigen Value Problem + (2) Poisson Equ.). I want to use summation of eigenfunctions of first equation in second equation as a source term. however, I dont know how to use eigen functions of first equation in second equation.</p> <p>Please help me!<br /> Sincerely yours! </p>