− u v 2 w 2 + u v 2 w − u v w 3 + 2 u v w 2 − u v w − u w 2 + v 3 w + v 2 w 2 − 2 v 2 w + v 2 − v w 2 + v w u v 3 / 2 w 3 / 2 {\displaystyle {\frac {-uv^{2}w^{2}+uv^{2}w-uvw^{3}+2uvw^{2}-uvw-uw^{2}+v^{3}w+v^{2}w^{2}-2v^{2}w+v^{2}-vw^{2}+vw}{{\sqrt {u}}v^{3/2}w^{3/2}}}}
