u v 5 − 2 u v 4 + u v 3 − u v 2 + 2 u v − 2 u − 2 v 5 + 2 v 4 − v 3 + v 2 − 2 v + 1 u v 5 / 2 {\displaystyle {\frac {uv^{5}-2uv^{4}+uv^{3}-uv^{2}+2uv-2u-2v^{5}+2v^{4}-v^{3}+v^{2}-2v+1}{{\sqrt {u}}v^{5/2}}}}
