The input argument fun refers to an IML module that specifies a function that returns f, a vector of length m for least-squares subroutines or a scalar for other optimization subroutines. The returned ...

School’s in session. Let’s talk about math. Go back to your calculus class senior year in high school. You take the derivative of y with respect to x. You are finding the sensitivity to the change in ...

This is a preview. Log in through your library . Abstract Let A and B be n × n matrices. We show that the matrix representing the linear transformation $X \mapsto ...