Academic Editor: J. Biazar
    
        Copyright © 2012 Xiaoji Liu and Yonghui Qin. This is an open access article distributed under the   Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
        
     
Abstract
We investigate successive matrix squaring (SMS) algorithms for
computing the generalized inverse  of a given matrix .