− q 7 / 2 + 3 q 5 / 2 − 6 q 3 / 2 + 8 q − 9 q + 9 q 3 / 2 − 8 q 5 / 2 + 5 q 7 / 2 − 3 q 9 / 2 {\displaystyle -q^{7/2}+3q^{5/2}-6q^{3/2}+8{\sqrt {q}}-{\frac {9}{\sqrt {q}}}+{\frac {9}{q^{3/2}}}-{\frac {8}{q^{5/2}}}+{\frac {5}{q^{7/2}}}-{\frac {3}{q^{9/2}}}}
