− q 7 / 2 + 3 q 5 / 2 − 5 q 3 / 2 + 7 q − 8 q + 7 q 3 / 2 − 7 q 5 / 2 + 4 q 7 / 2 − 2 q 9 / 2 {\displaystyle -q^{7/2}+3q^{5/2}-5q^{3/2}+7{\sqrt {q}}-{\frac {8}{\sqrt {q}}}+{\frac {7}{q^{3/2}}}-{\frac {7}{q^{5/2}}}+{\frac {4}{q^{7/2}}}-{\frac {2}{q^{9/2}}}}
