SKKU-LA-4.4-부피와 넓이 (Determinant)
1. 2차원의 Determinant (with GeoGebra)
http://www.geogebratube.org/student/m113# 삼각형의 넓이 구하기 (with GeoGebra)
http://www.geogebratube.org/student/m94972. 3차원의 Determinant (with sage)
3. 넓이와 부피
http://matrix.skku.ac.kr/CLAMC/chap4/page35.htm4. 선형대수학 Section 4-4, Appl of Determinant
http://youtu.be/VV5zzeYipZs