10楼: Originally posted by peterflyer at 2016-08-15 19:17:18
关键是将几个复数的对数函数之和如何化成实函数。楼主怎么做的呢？...

4楼: Originally posted by Mr__Right at 2016-08-13 22:37:52
其实写成这样似乎更恰当

\frac{1}{2} \sqrt{\frac{1}{2}+\frac{1}{\sqrt{2}}} \left(\left(\sqrt{2}-1\right) \left(\ln \left(u-\sqrt{2 \left(1+\sqrt{2}\right)} \sqrt{u}+\sqrt{2}\right)-\ln \left(u+\sqr ...