Is QR decomposition a pre-requisite for SVD decompostion of non-square matrices? I have been unable to find a clear cut answer to this question. I will be grateful for a response.
2026-03-30 08:31:10.1774859470
SVD for Non-Square matrices?
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If your question is whether in order to compute the singular value decomposition of a given matrix, one needs to compute QR decompositions I believe the answer is no. One can use them to this end but they are not necessary, see here.