![https://images.plurk.com/FhB9pmEGurAbI0p567mc5.jpg](https://images.plurk.com/mx_FhB9pmEGurAbI0p567mc5.jpg)
![](https://avatars.plurk.com/15514377-medium28619036.gif)
對數函數
非常舒服的數字
![https://images.plurk.com/FhB9pmEGurAbI0p567mc5.jpg](https://images.plurk.com/mx_FhB9pmEGurAbI0p567mc5.jpg)
![](https://avatars.plurk.com/5993803-medium8.gif)
掰噗~
你說了算~