對數函數及其圖像 | Logarithmic Functions and their Graphs

影片內容：

00:05 – 對數函數的定義 | definition of logarithmic function
01:50 – 對數函數的圖像 | graphs of logarithmic function
10:38 – 例子 | example
12:01 – 指數與對數函數圖像的關係 | relationship between graphs of exponential and logarithmic