Hello everyone!
I have a question on whether a system of equations can be classified as linear. I have the following matrix:
\begin{equation}
\left[ \begin{array}{c} S_t(1) \\ S_t(2) \\ \vdots \\ S_t(\omega_N) \end{array} \right] =
\begin{bmatrix} f(x_1, x_2, 1) & f(x_2, x_3, 1) & \cdots &...