q 5 / 2 − 4 q 3 / 2 + 7 q − 9 q + 10 q 3 / 2 − 11 q 5 / 2 + 8 q 7 / 2 − 6 q 9 / 2 + 3 q 11 / 2 − 1 q 13 / 2 {\displaystyle q^{5/2}-4q^{3/2}+7{\sqrt {q}}-{\frac {9}{\sqrt {q}}}+{\frac {10}{q^{3/2}}}-{\frac {11}{q^{5/2}}}+{\frac {8}{q^{7/2}}}-{\frac {6}{q^{9/2}}}+{\frac {3}{q^{11/2}}}-{\frac {1}{q^{13/2}}}}