More evil ideas

Puma

Origin: COCONUT 
Physical meaning: inverse kinematics of a 3R robot 
8 equations with 8 unknowns

  x1^2 + x2^2 - 1 =0 x3^2 + x4^2 - 1 =0 x5^2 + x6^2 - 1 =0 x7^2 + x8^2 - 1 =0 0.004731*x1*x3 - 0.3578*x2*x3 - 0.1238*x1 - 0.001637*x2 - 0.9338*x4 + x7=0 1 =0 0.2238*x1*x3 + 0.7623*x2*x3 + 0.2638*x1 - 0.07745*x2 -0.6734*x4 -0.6022 =0 x6*x8 + 0.3578*x1 + 0.004731*x2 =0 -0.7623*x1 + 0.2238*x2 + 0.3461 =0 

Ranges: [-1,1] for all unknowns 
Solving method: GradientSolve+HullConsistencyStrong+ +3B 
Solutions:: 16 (exact) 

Computation time (May 2004):

So output the sum of all the outputs ( how far from zero they are).