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