( w − 1 ) ( 2 u v w 2 − 4 u v w + 2 u v − u w 2 + 3 u w − 4 u − 4 v w 2 + 3 v w − v + 2 w 2 − 4 w + 2 ) u v w 3 / 2 {\displaystyle {\frac {(w-1)\left(2uvw^{2}-4uvw+2uv-uw^{2}+3uw-4u-4vw^{2}+3vw-v+2w^{2}-4w+2\right)}{{\sqrt {u}}{\sqrt {v}}w^{3/2}}}}