Array ( [0] => Array ( [title] => L32A [link] => https://www.youtube.com/embed/xJQc4d3IkMw ) [1] => Array ( [title] => L32B [link] => https://www.youtube.com/embed/KOUim_DqZ9Q ) [2] => Array ( [title] => L32C [link] => https://www.youtube.com/embed/_e1-1x30LjA ) [3] => Array ( [title] => L32D [link] => https://www.youtube.com/embed/LnsrZCpO8BQ ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第32R講 Chapter 6:Differentiable mappings