What is the derivative of a matrix?
Definition 1 BroadLet F = ( f s t ) be an m × p matrix function of an n × q matrix of variables X = ( x i j ) . Any r × c matrix satisfying r c = m p n q and containing all the partial derivatives ∂ f s t ( X ) / ∂ x i j is called a derivative of .Beside this, can you take the derivative of a matrix...