1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
fp coeff_dy_m1_m1, coeff_dy_0_m1, coeff_dy_p1_m1, coeff_dy_p2_m1, coeff_dy_m1_0, coeff_dy_0_0, coeff_dy_p1_0, coeff_dy_p2_0, coeff_dy_m1_p1, coeff_dy_0_p1, coeff_dy_p1_p1, coeff_dy_p2_p1, coeff_dy_m1_p2, coeff_dy_0_p2, coeff_dy_p1_p2, coeff_dy_p2_p2;