u v w 2 − u v w − 2 u w 2 + 4 u w − u + v w 3 − 4 v w 2 + 2 v w + w 2 − w u v w 3 / 2 {\displaystyle {\frac {uvw^{2}-uvw-2uw^{2}+4uw-u+vw^{3}-4vw^{2}+2vw+w^{2}-w}{{\sqrt {u}}{\sqrt {v}}w^{3/2}}}}
