Array ( [0] => Array ( [title] => L28A [link] => https://www.youtube.com/embed/-uhqg1xoCi0 ) [1] => Array ( [title] => L28B [link] => https://www.youtube.com/embed/W_XJaDoQjt8 ) [2] => Array ( [title] => L28C [link] => https://www.youtube.com/embed/UQaGxOx_yf0 ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第28R講 Mobius Transformation and Non-Euclidean Geometry