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