Array ( [0] => Array ( [title] => L14A [link] => https://www.youtube.com/embed/jnayDWRKngM ) [1] => Array ( [title] => L14B [link] => https://www.youtube.com/embed/lz821yRBf9A ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - Lecture 14 | Characteristic equations; Infinitely many eigenvalues of linear discrete DDEs