(2.99356 (-1.61292 + 1. x - 1.28513 y - 5.16328 z) (-0.223725 +
1. x - 2.088 y - 3.28 z) (-1. + x - 2.088 y - 3.28 z) (0.2 + x -
2.088 y - 3.28 z))/(-0.216046 - 1.06418 x + 0.280228 x^2 +
1. x^3 + 2.15489 y - 0.205516 x y - 5.30936 x^2 y - 0.655461 y^2 +
9.23125 x y^2 - 5.23053 y^3 + 2.72667 z - 3.36283 x z -
11.0218 x^2 z + 3.91327 y z + 39.821 x y z - 35.5488 y^2 z +
7.42907 z^2 + 39.4353 x z^2 - 72.2559 y z^2 - 46.0586 z^3)
