PUMA
Istituto di Scienza e Tecnologie dell'Informazione     
Laratta A. Some remarks on the error propagation in computing projections onto linear manifolds. Internal note IEI-B85-11, 1985.
 
 
Abstract
(English)
In [1], [2] and [3] methods to compute the solutions X^* of an undetermined linear system having least distance from a point p are studied and error bounds depending on the condition number of the system matrix and on the Euclidean distance of p from X^* are derived. In this paper, we show that better bounds can be derived if the direction of the vector p-x^* is also taken into account.
Subject Linear Systems


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