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