m_k^- & = frac{(1-T_k)(1-C_k)(1+B_k)}{2} frac{p_k - p_{k-1}}{x_k - x_{k-1}} + frac{(1-T_k)(1+C_k)(1-B_k)}{2} frac{p_{k+1} - p_k}{x_{k+1} - x_k} , \ m_k^+ & = frac{(1-T_k)(1+C_k)(1+B_k)}{2} frac{p_k - p_{k-1}}{x_k - x_{k-1}} + frac{(1-T_k)(1-C_k)(1-B_k)}{2} frac{p_{k+1} - p_k}{x_{k+1} - x_k} ext{mit} T_k, C_k, B_k in [-1,1...