A representation of nonhomogeneous quadratic forms with application to the least squares solution (Q410366)
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scientific article; zbMATH DE number 6021077
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A representation of nonhomogeneous quadratic forms with application to the least squares solution |
scientific article; zbMATH DE number 6021077 |
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A representation of nonhomogeneous quadratic forms with application to the least squares solution (English)
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3 April 2012
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Summary: The least squares problem appears, among others, in linear models, and refers to inconsistent systems of linear equations. A crucial question is how to reduce the least squares solution in such a system to the usual solution in a consistent one. Traditionally, this is reached by differential calculus. We present a purely algebraic approach to this problem based on some identities for nonhomogeneous quadratic forms.
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