Array ( [0] => Array ( [title] => L25A [link] => https://www.youtube.com/embed/-fwGgYi7-bY ) [1] => Array ( [title] => L25B [link] => https://www.youtube.com/embed/AU7-dCKydsg ) [2] => Array ( [title] => L25C [link] => https://www.youtube.com/embed/J7sXahbrsng ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - Lecture 25 | Example: Planar Hopf bifurcation;Example: Takens-Bogdanov bifurcation