− q 7 / 2 + 2 q 5 / 2 − 3 q 3 / 2 + 4 q − 5 q + 5 q 3 / 2 − 4 q 5 / 2 + 2 q 7 / 2 − 2 q 9 / 2 {\displaystyle -q^{7/2}+2q^{5/2}-3q^{3/2}+4{\sqrt {q}}-{\frac {5}{\sqrt {q}}}+{\frac {5}{q^{3/2}}}-{\frac {4}{q^{5/2}}}+{\frac {2}{q^{7/2}}}-{\frac {2}{q^{9/2}}}}
