− q 7 / 2 + 2 q 5 / 2 − 2 q 3 / 2 + 3 q − 4 q + 3 q 3 / 2 − 3 q 5 / 2 + 1 q 7 / 2 − 1 q 9 / 2 {\displaystyle -q^{7/2}+2q^{5/2}-2q^{3/2}+3{\sqrt {q}}-{\frac {4}{\sqrt {q}}}+{\frac {3}{q^{3/2}}}-{\frac {3}{q^{5/2}}}+{\frac {1}{q^{7/2}}}-{\frac {1}{q^{9/2}}}}
