Y add -9.44 div exp add -0.641 mul -67.9 x_2 div inv add -0.809 mul -0.67 x_3 add add mul -0.64 div x_2 x_4 mul -6.140000000000001 inv add -72.8 mul 0.624 x_1 mul 62.300000000000004 tan add 0.223 mul -62.300000000000004 x_0