A problem with modal analysis

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Author Message   Patricio A. Greco (pagreco) Member Username: pagreco Post Number: 9 Registered: 12-2004 Posted on Saturday, June 25, 2005 - 11:37 pm:    Dr.Nelson: I´m working with a resonator problem and I found a problem with the modal solver. Pease see the attched script,this is a simplified form of the problem where If I change the equation the lambda values are the same. In the real problem need to use lambda and lambda^2 simultaneously. res1.pde (0.8 k)   Patricio A. Greco (pagreco) Member Username: pagreco Post Number: 10 Registered: 12-2004 Posted on Sunday, June 26, 2005 - 06:50 pm:    Dr. Nelson: I think that a new eigenfunction solver with support for nonlinear lambda expressions could be very useful. There are many problems where it is necessary for example a simple optical resonator model with nonperfect mirrors . Thank you , Patricio.