MIT Linear Algebra, Lecture 6: Column Space and Null Space

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Sharkey Permalink
February 24, 2010, 14:03

Just a quick comment: in your column space example, the 3rd column isn't a multiple of the first; rather, it's a result of the addition of the first and the second: (1,2,3,4) + (1,1,1,1) = (2,3,4,5).

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