Stephen Ehidiamhen Uwamusi

The Roles of Condition Number for the Interval Hull Solution Set in Least Squares Equation

Stephen Ehidiamhen Uwamusi · Journal of Advances in Mathematics and Computer Science · 2014

The paper considers nearness to singularity for which the Co-variance matrix in the least squares equation is well known. A synchronization of the condition number with ill-conditioning is highlighted which relates the quality of approximate solution to the described system. Vari...

Open access Research Article 10.9734/BJMCS/2014/8110

The Core Error Problem in Variables for Statistical Least Squares with Interval Data

Stephen Ehidiamhen Uwamusi & Andrew Esaborlupia Uwamusi · Journal of Advances in Mathematics and Computer Science · 2013

The paper discusses the core problem error in variables for statistical Least Squares which have noise in the data using polynomial fit of order three. Via Mobius transformation for complex disk in the sense of Petkovic, the exact inversion of a disk was described. Its pitfall wa...

Open access Research Article 10.9734/BJMCS/2014/5289