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On updating formulas for least squares solutions and pseudo-inverses

✍ Scribed by R. De Meersman; P. Siau

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 326 KB
Volume: 3
Category: Article
ISSN: 0377-0427
DOI: 10.1016/s0377-0427(77)80023-x

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## Abstract Condition numbers play an important role in numerical analysis. Classical condition numbers are normwise: they measure the size of both input perturbations and output errors using norms. In this paper, we give explicit, computable expressions depending on the data, for the normwise cond