Y add 0.809 add sub mul 0.372 pow2 add 75.2 mul 51.7 x_0 sub mul -70.3 x_1 sub mul 74.3 x_3 sub mul -0.99 x_3 mul -40.7 inv add 20.8 mul 8.23 mul tan add 0.224 mul 36.5 x_2 abs add 0.49 mul -3.68 x_1 mul 92.5 x_1