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