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Optimization using fsolve
Posted:
Aug 21, 2000 10:58 AM


Hi all,
I want to minimize a nonlinear system of equations. I'm using fsolve from the optimization toolbox version 2.0. There are about 100 parameters to be calculated iteratively. The equation is of cubic type (F(x,x^3)=0) and there are problems to find adequate solutions even though the starting values of the 100 parameters are quite close to the expected values. I tried to change the options (TolPCG and PrecondBandWidth) but that didn't help. My questions are:
1. Does anybody have experience with that kind of nonlinear equations? 2. Are there other possibilities to calculate the parameters of such a nonlinear system of equations iteratively using MATLAB?
Thanks for all the feedback
Stefan Meyer



