Suppose A is m x n with linearly independent columns and b is in R m .
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Suppose A is m x n with linearly independent columns and b is in Rm. Use the normal equations to produce a formula for b̂, the projection of b onto Col A.
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By Theorem 14 b AX AA T A 1 A T b The matrix AA T A 1 A T is sometimes called the ...View the full answer
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Related Book For
Linear Algebra And Its Applications
ISBN: 9781292351216
6th Global Edition
Authors: David Lay, Steven Lay, Judi McDonald
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