Array ( [0] => Array ( [title] => L15A [link] => https://www.youtube.com/embed/ZH9fVBMM2no ) [1] => Array ( [title] => L15B [link] => https://www.youtube.com/embed/ts5W0hggOiM ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第15講 More Examples on Solving Recurrence with GF