result =
	coeff_dy_m1_m1*data_m1_m1
	+ coeff_dy_0_m1*data_0_m1
	+ coeff_dy_p1_m1*data_p1_m1
	+ coeff_dy_m1_0*data_m1_0
	+ coeff_dy_0_0*data_0_0
	+ coeff_dy_p1_0*data_p1_0
	+ coeff_dy_m1_p1*data_m1_p1
	+ coeff_dy_0_p1*data_0_p1
	+ coeff_dy_p1_p1*data_p1_p1;