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