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