A singular value decomposition of a matrix A is as follows: -0.5 0.5 -0.5] [15 0 0.5 -0.5 0.5 0.5 -0.5 0 10 [0.8 -0.67 0.5 0.5 0 0 0.6 0.8 A = 0.5 0.5 -0.5 -0.5 0.5 0.5 1. Find the closest (with respect to the Frobenius norm) matrix of rank 1 to A. A1 = 2. Find the Frobenius norm of A - A1. ||A - A1||F 0 0

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.5: Subspaces, Basis, Dimension, And Rank
Problem 63EQ
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A singular value decomposition of a matrix A is as follows:
0.5
-0.5 0.5 -0.5] [15
0
-0.5
10 [0.8 -0.67
0.5 0.5 -0.5 0
0.5
0.5
0.5 0.5
-0.5 -0.5 0.5 0.5 0 0
1. Find the closest (with respect to the Frobenius norm) matrix of rank 1 to A.
A =
A1 =
0 0 0.6 0.8
2. Find the Frobenius norm of A - A1.
||A - A1||F
=
Transcribed Image Text:A singular value decomposition of a matrix A is as follows: 0.5 -0.5 0.5 -0.5] [15 0 -0.5 10 [0.8 -0.67 0.5 0.5 -0.5 0 0.5 0.5 0.5 0.5 -0.5 -0.5 0.5 0.5 0 0 1. Find the closest (with respect to the Frobenius norm) matrix of rank 1 to A. A = A1 = 0 0 0.6 0.8 2. Find the Frobenius norm of A - A1. ||A - A1||F =
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