solve Ax=b by singular value decomposition

2022 11 16

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更新时间：2022 11 16

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After I've got U,S,V by [U,S,V] = svd(A), how do I get x?

Is it x = (V*(S^(-1)*U')*b?

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Steven Lord 2022-11-16

Is there a particular reason you're using svd rather than simply using the \ operator?

Torsten 2022-11-16

Is it x = (V*(S^(-1)*U')*b?

No, only if S has all singular values not equal to 0.

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