Y add 91.30000000000001 div exp add 0.8300000000000001 mul 0.169 x_2 add mul 65.8 div x_2 mul tan add 5.23 mul 8.13 x_3 tan add mul 0.878 x_0 mul 67.8 x_3 mul 0.63 div x_2 pow3 add 0.607 mul -0.316 x_1