Array ( [0] => Array ( [title] => L18A [link] => https://www.youtube.com/embed/4Ic6SD7fCC0 ) [1] => Array ( [title] => L18B [link] => https://www.youtube.com/embed/nK99vLRFd1I ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - Lecture 18 | Spectral effect of large delays; Example: Neutral differential difference equations