Y add 84.2 mul add mul 3.36 sin add -8.370000000000001 mul -6.4 x_0 sub mul -0.964 sin add 11.5 mul 4.32 x_4 add mul 0.179 sin add -0.987 mul -0.07200000000000001 x_2 mul -0.99 inv sub mul -0.134 x_3 mul -3.75 x_4 x_1