Question: How do I find the gradient of the function wich contains matrices using Maple?

Hello community. I'm trying to use Maple for some study.
My goal is to get the Wiener-Hopf equation in matrix form like in the book (eq 3.56).
So at first i need the gradient of eq 3.53, the result is eq 3.55 (nabla is not printed) .
Could you please provide an example of this operation, if it is possible, thanks.


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