Let Q be an n n orthogonal matrix. Show that (a) _Q_2 = 1 (b) cond2(Q) = 1 (c) for any b
Chapter 7, Problem 41(choose chapter or problem)
Let Q be an n n orthogonal matrix. Show that (a) _Q_2 = 1 (b) cond2(Q) = 1 (c) for any b Rn, the relative error in the solution of Qx = b is equal to the relative residual; that is, _e_2 _x_2 = _r_2 _b_2 4
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