q 5 / 2 − 4 q 3 / 2 + 7 q − 10 q + 12 q 3 / 2 − 12 q 5 / 2 + 10 q 7 / 2 − 8 q 9 / 2 + 4 q 11 / 2 − 2 q 13 / 2 {\displaystyle q^{5/2}-4q^{3/2}+7{\sqrt {q}}-{\frac {10}{\sqrt {q}}}+{\frac {12}{q^{3/2}}}-{\frac {12}{q^{5/2}}}+{\frac {10}{q^{7/2}}}-{\frac {8}{q^{9/2}}}+{\frac {4}{q^{11/2}}}-{\frac {2}{q^{13/2}}}}