fp coeff_m2_m2;
fp coeff_m1_m2;
fp coeff_0_m2;
fp coeff_p1_m2;
fp coeff_p2_m2;
fp coeff_m2_m1;
fp coeff_m1_m1;
fp coeff_0_m1;
fp coeff_p1_m1;
fp coeff_p2_m1;
fp coeff_m2_0;
fp coeff_m1_0;
fp coeff_0_0;
fp coeff_p1_0;
fp coeff_p2_0;
fp coeff_m2_p1;
fp coeff_m1_p1;
fp coeff_0_p1;
fp coeff_p1_p1;
fp coeff_p2_p1;
fp coeff_m2_p2;
fp coeff_m1_p2;
fp coeff_0_p2;
fp coeff_p1_p2;
fp coeff_p2_p2;