Karan Vasudeva comment on MIT Linear Algebra, Lecture 5: Vector Spaces and Subspaces

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I've finally learned what 'upward compatible' means. It means we get to keep all our old mistakes.

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January 22, 2010, 01:53

Permutation matrices execute row exchanges when multiplied on the left, and column exchanges when multiplied on the right...

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MIT Linear Algebra, Lecture 5: Vector Spaces and Subspaces