Using polyeig with scaling matrices

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Mohamed Hajjaj 2022-2-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1658630-using-polyeig-with-scaling-matrices

I'm using the function polyeig to solve a quadratic eigenvalue problem with complex matrices A0.A1 and A2 (A2 is singular; has only two non-zero rows).

The result was so bad, and according to the help center of Mathworks : (Scaling A0,A1,...,Ap to have norm(Ai) roughly equal to 1 might increase the accuracy of polyeig)

https://www.mathworks.com/help/matlab/ref/polyeig.html

Is there any function in Matlab to do this scaling?

Thanks in advance;