19楼: Originally posted by 西工院小子 at 2015-11-13 10:59:31
-1怎么取对数，数学真溜啊

10楼: Originally posted by hylpy at 2015-11-12 21:21:09
e^ i^\pi乃复指函数，LZ取等式两边平方，是用实数函数方法处理了，所以会出现矛质的结果。

15楼: Originally posted by 追自由的风 at 2015-11-13 09:35:08
你两边平方就不对了

13楼: Originally posted by Edstrayer at 2015-11-13 03:59:26
复变中对数函数是多值函数：
z=re^{i\theta}\Rightarrow \ln z=\ln r+i(\theta+2k\pi)(k\in\mathbb{Z})

13楼: Originally posted by Edstrayer at 2015-11-13 03:59:26
复变中对数函数是多值函数：
z=re^{i\theta}\Rightarrow \ln z=\ln r+i(\theta+2k\pi)(k\in\mathbb{Z})

28楼: Originally posted by 铸剑人 at 2015-11-14 09:56:09
复数领域的平方需要自身乘以共轭，eipi*(eipi)*=1。