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