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Transpose & Dot Product - Stanford University

Motivating Questions for Reading Problem 1: Let b 2C(A). So, the system of equations Ax = b does have solutions, possibly in nitely many. Q: What is the solution x of Ax = b with kxkthe smallest? Problem 2: Let b 2=C(A). So, the system of equations Ax = b does not have any solutions. In other words, Ax b 6=0.

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