Array ( [0] => Array ( [title] => L7A [link] => https://www.youtube.com/embed/jBE5uGo97F4 ) [1] => Array ( [title] => L7B [link] => https://www.youtube.com/embed/-oG4AVdRepc ) [2] => Array ( [title] => L7C [link] => https://www.youtube.com/embed/ZBtTuf_zWsw ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第7講 The Moving Boundary Problem