人工智能教程 - 數學基礎課程1.3 - 高等代數(一)-10,11

四個基本子空間 (4 subspaces) A is column space C(A) in R m R ^m Rm null space N(A) row space = all combs of rows =all combs of columns of A = C( A T A^T AT) in R n R ^n Rn null space of A T = N ( A T ) i n R

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