3楼: Originally posted by Mr__Right at 2016-11-11 16:34:39
尝试求出 f_0=0情况下的所有解：

\begin{array}{rl}1)r_1=r_2=&-\sqrt{\dfrac{1}{6}\left(-10+\sqrt{115}\right)}\\2)r_1=r_2=&\sqrt{\dfrac{1}{6}\left(-10+\sqrt{115}\right)}\\3)r_1=r_2=&-i\sq ...

2楼: Originally posted by Mr__Right at 2016-11-11 16:28:38
r_1=r_2，f_0=0 看上去是非常好的解。

3楼: Originally posted by Mr__Right at 2016-11-11 16:34:39
尝试求出 f_0=0情况下的所有解：

\begin{array}{rl}1)r_1=r_2=&-\sqrt{\dfrac{1}{6}\left(-10+\sqrt{115}\right)}\\2)r_1=r_2=&\sqrt{\dfrac{1}{6}\left(-10+\sqrt{115}\right)}\\3)r_1=r_2=&-i\sq ...