Y add -6.21 div add sub mul -0.931 mul add sub mul -43.900000000000006 x_1 sub mul 4.43 x_2 mul -87.10000000000001 x_4 mul -0.421 x_1 inv add -4.12 mul -0.508 x_2 mul -0.527 pow3 add -0.389 mul -0.401 x_3 mul -6.22 x_0 div x_1 cos add 0.67 mul 26.8 x_4