Does a http://en.wikipedia.org/wiki/Tikhonov_regularization" [Broken] solution for least squares have to be iteratively solved? Or is there a way to perform regularization via linear algebra, the way linear regression can be done by solving the (X(adsbygoogle = window.adsbygoogle || []).push({}); ^{T}X)B=X^{T}y normal equations?

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# Does least squares regularization have to be iterative?

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