Array ( [0] => Array ( [title] => L26A [link] => https://www.youtube.com/embed/YVlHK6LKjCE ) [1] => Array ( [title] => L26B [link] => https://www.youtube.com/embed/h7OzaR8XjwU ) [2] => Array ( [title] => L26C [link] => https://www.youtube.com/embed/SZJDJwOyFVg ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第26R講 續.對數函數 part I, 7.3 對數函數 part II, 7.4 指數函數 (check)