q 11 / 2 − 3 q 9 / 2 + 6 q 7 / 2 − 8 q 5 / 2 + 9 q 3 / 2 − 9 q + 7 q − 6 q 3 / 2 + 2 q 5 / 2 − 1 q 7 / 2 {\displaystyle q^{11/2}-3q^{9/2}+6q^{7/2}-8q^{5/2}+9q^{3/2}-9{\sqrt {q}}+{\frac {7}{\sqrt {q}}}-{\frac {6}{q^{3/2}}}+{\frac {2}{q^{5/2}}}-{\frac {1}{q^{7/2}}}}
