Y add -65.2 mul x_0 add mul -0.8310000000000001 mul div sin add 3.79 mul -0.46 div cos add -34.0 mul 0.154 x_1 sub mul 49.1 exp add 31.8 mul 0.713 x_1 mul 71.8 pow2 add -4.45 mul 7.21 x_2 x_3 x_4 mul 7.04 x_3