Changes
/* Conventional Physical Optics (GO-PO) */
:<math> \mathbf{M(r)} = -\mathbf{\hat{n}\times} \begin{bmatrix} 1+\Gamma_{||} & 0 \\ 0 & 1+\Gamma_{\perp} \end{bmatrix} \cdot \begin{bmatrix} \mathbf{E_{||}^{inc}(r)} \\ \mathbf{E_{\perp}^{inc}(r)} \end{bmatrix} </math>
where it is assumed that both the incident electric field and incident magnetic field have been decomposed into two parallel and perpendicular polarizations and Γ<sub>||</sub> and Γ<sub>⊥</sub> denote the reflections coefficients at the interface between air and the impedance surface for the parallel and perpendicular polarizations, respectively.
