Y add -6.79 div div sin add 7.5 mul -7.0600000000000005 mul x_6 x_3 div add mul -0.618 x_5 mul -63.0 x_4 add mul 2.56 mul pow2 add -0.431 mul 25.1 div x_7 x_2 add mul 32.1 pow3 add 0.4 mul -0.935 x_7 mul 71.60000000000001 x_1 mul -0.277 cos add -8.97 mul 82.4 x_3 x_0