Y add -2.57 sub mul 2.59 abs add 7.21 mul -0.708 x_0 mul -0.519 mul div sub mul -7.57 inv add -0.219 mul -49.300000000000004 x_0 mul -31.0 div tan add -0.089 mul -0.078 x_1 tan add -87.2 mul -68.4 x_2 x_3 x_0