[Bug] (-1/3)^(-3/2)
目前版本 v0.576, 计算 $(-\frac{1}{3})^{-\frac{3}{2}}$,
>> (-1/3)^(-3/2)
in> (-1/3)^(-3/2)
out> 0.00000000-0.19245009i
------------------------
正确答案应该是 $-5.19615242i$.
\[
(-\frac{1}{3})^{-\frac{3}{2}}=\frac{1}{(-\frac{1}{3})^{\frac{3}{2}}}=
\]