( w − 1 ) ( u 2 v 2 w + u 2 ( − v 2 ) + u 2 v w 2 − 2 u 2 v w + u 2 v − u 2 w 2 + u 2 w − 2 u v 2 w + 2 u v 2 − 2 u v w 2 + 5 u v w − 2 u v + 2 u w 2 − 2 u w + v 2 w − v 2 + v w 2 − 2 v w + v − w 2 + w ) u v w 3 / 2 {\displaystyle {\frac {(w-1)\left(u^{2}v^{2}w+u^{2}\left(-v^{2}\right)+u^{2}vw^{2}-2u^{2}vw+u^{2}v-u^{2}w^{2}+u^{2}w-2uv^{2}w+2uv^{2}-2uvw^{2}+5uvw-2uv+2uw^{2}-2uw+v^{2}w-v^{2}+vw^{2}-2vw+v-w^{2}+w\right)}{uvw^{3/2}}}}
