2 2 3 -z *y*(-x)*z y *x*(-x)*z - z - ------------ - ---------------------- 2 2 z + x*y / 2 \ / 2 \ \z + x*y/*\z + x*y/
-z^3 - (((-z^2)*y)*(-x))*z/(z^2 + x*y) - ((y^2*x)*(-x))*z/((z^2 + x*y)*(z^2 + x*y)^2)
2 2 3 3 z*x *y x*y*z - z + ----------- - -------- 3 2 / 2 \ z + x*y \z + x*y/
-z^3 + z*x^2*y^2/(z^2 + x*y)^3 - x*y*z^3/(z^2 + x*y)
3 / 2 \ / 3 / 2 \ 3\ 2 2 / 2 \ \z + x*y/ *\- z *\z + x*y/ - x*y*z / + z*x *y *\z + x*y/ ----------------------------------------------------------- 4 / 2 \ \z + x*y/
((z^2 + x*y)^3*(-z^3*(z^2 + x*y) - x*y*z^3) + z*x^2*y^2*(z^2 + x*y))/(z^2 + x*y)^4
/ 8 2 2 3 3 2 6 2 2 4\ -z*\z - x *y + 2*x *y *z + 4*x*y*z + 5*x *y *z / ----------------------------------------------------- 3 / 2 \ \z + x*y/
-z*(z^8 - x^2*y^2 + 2*x^3*y^3*z^2 + 4*x*y*z^6 + 5*x^2*y^2*z^4)/(z^2 + x*y)^3
-z^3 + z*x^2*y^2/(z^2 + x*y)^3 - x*y*z^3/(z^2 + x*y)
-z^3 + z*x^2*y^2/(z^2 + x*y)^3 - x*y*z^3/(z^2 + x*y)
/ 2 \ | 2 2 2 / 2 \ / 2 \| z*\x *y + z *\z + x*y/ *\- z - 2*x*y// ----------------------------------------- 3 / 2 \ \z + x*y/
z*(x^2*y^2 + z^2*(z^2 + x*y)^2*(-z^2 - 2*x*y))/(z^2 + x*y)^3
9 2 2 2 2 5 7 3 z + z*x *y + x *y *z + 2*x*y*z - 2*z + ---------------------------------- 6 3 3 4 2 2 2 z + x *y + 3*x*y*z + 3*x *y *z
-2*z^3 + (z^9 + z*x^2*y^2 + x^2*y^2*z^5 + 2*x*y*z^7)/(z^6 + x^3*y^3 + 3*x*y*z^4 + 3*x^2*y^2*z^2)
2 2 3 3 z*x *y x*y*z - z + ----------- - -------- 3 2 / 2 \ z + x*y \z + x*y/
-z^3 + z*x^2*y^2/(z^2 + x*y)^3 - x*y*z^3/(z^2 + x*y)
2 2 3 3 z*x *y x*y*z - z + ----------- - -------- 3 2 / 2 \ z + x*y \z + x*y/
-z^3 + z*x^2*y^2/(z^2 + x*y)^3 - x*y*z^3/(z^2 + x*y)
2 2 3 / x*y \ z*x *y z *|-1 - --------| + ----------- | 2 | 3 \ z + x*y/ / 2 \ \z + x*y/
2 2 3 3 z*x *y x*y*z - z + ----------- - -------- 3 2 / 2 \ z + x*y \z + x*y/
-z^3 + z*x^2*y^2/(z^2 + x*y)^3 - x*y*z^3/(z^2 + x*y)