Published: 2016 Received: October 07, 2015Released on J-STAGE: March 26, 2016Accepted: December 28, 2015
Advance online publication: -
Revised: -
Correction information
Date of correction: August 27, 2018Reason for correction: Correction of publication yearCorrection: BibliographyDetails: Publication year: Wrong 2015 / Right 2016
In this paper, an initial guess is proposed for Newton's method to compute the principal matrix square root, and a sufficient condition of the initial guess is shown for the quadratic convergence. Numerical examples indicate that the initial guess is promising for computing the principal square roots of overlap matrices arising from condensed matter physics.
