MIT GilbertStrang 교수님의 Linearalgebra 14강 Orthogonal Vectors and subspacesThe “big picture” of this course is that the row space of a matrix’ is orthogonal to its nullspace, and its column space is orthogonal to its left nullspace.Row space & nullspace는 orthogonal(직교)한다. Column space & left nullspace도 orthogonal(직교)한다.Orthogonal vectors (직교 벡터)Orthogonal is just another word for perpendicular. T..