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 − u v 2 w 2 + 2 u v 2 w − u v w 3 + 4 u v w 2 − 4 u v w + u v − 2 u w 2 + u w − 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-uv^{2}w^{2}+2uv^{2}w-uvw^{3}+4uvw^{2}-4uvw+uv-2uw^{2}+uw-vw^{2}+2vw-v+w^{2}-w}{uvw^{3/2}}}}
