Array ( [0] => Array ( [title] => L30A [link] => https://www.youtube.com/embed/kDM3m5KYF2E ) [1] => Array ( [title] => L30B [link] => https://www.youtube.com/embed/ll-LJUd8GBk ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - Lecture 30 | Example: Euler’s rod; Equivariant Lyapunov-Schmidt reduction