Find complex roots of homogeneous matrix equation

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dj1du
dj1du 2022-2-4
回答： Matt J 2022-2-4
Good afternoon,
I am trying to find the complex zeros of the matrix equation , in which Z is a complex 49x49 impedance matrix and is a complex frequency. The complex frequency is given at equidistant points, so it is no continuous variable.
Is there any MATLAB function or a suitable algorithm for finding the zeros?

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回答（1 个）

Matt J
Matt J 2022-2-4
Just loop over the discrete s until you find where det(Z) is sufficiently close to zero.

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