Array ( [0] => Array ( [title] => L30A [link] => https://www.youtube.com/embed/RDVZ01u3xNA ) [1] => Array ( [title] => L30B [link] => https://www.youtube.com/embed/fqH2Oeyb6Vc ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - Lecture 30 | DDEs of negative feedback type; Global attractors; Zero number