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Where it says max_{Q}I don't understand.

Q is a matrix, so are A and P.

I know what q_{1}and the 2-norm of P are, but what on earth does max Q mean?

I started with the matrix A, I've selected Q as positive definite arbitrarily, and I recieved a matrix P. I need to now find rho but I'm stuck on what max Q means.

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# Homework Help: Need help on understanding this notation

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