Array ( [0] => Array ( [title] => L11A [link] => https://www.youtube.com/embed/ZoHAXulJ-o8 ) [1] => Array ( [title] => L11B [link] => https://www.youtube.com/embed/y2JmOD2ggL0 ) [2] => Array ( [title] => L11C [link] => https://www.youtube.com/embed/5AygWizF7Wk ) [3] => Array ( [title] => L11D [link] => https://www.youtube.com/embed/SOXwvjlv8Dk ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第11R講 3.2 The Heine-Borel Theorem