Approximating the Inverse of a Square Matrix with Application in Computation of the Moore-Penrose Inverse

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td align="left">Methods</td><td align="center">GMRES</td><td align="center">PGMRES-(<a href="https://static.hindawi.com/articles/jam/volume-2014/731562/figures/#EEq1">1</a>)</td><td align="center">PGMRES-(<a href="https://static.hindawi.com/articles/jam/volume-2014/731562/figures/#EEq3">3</a>)</td><td align="center">PGMRES-(<a href="https://static.hindawi.com/articles/jam/volume-2014/731562/figures/#EEq4">4</a>)</td><td align="center">PGMRES-(<a href="https://static.hindawi.com/articles/jam/volume-2014/731562/figures/#EEq9">9</a>)</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td align="left"> The total time</td><td align="center">0.29</td><td align="center">0.14</td><td align="center">0.14</td><td align="center">0.09</td><td align="center">0.07</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Results of elapsed computational time for solving Example <a href="https://static.hindawi.com/articles/jam/volume-2014/731562/figures/#ex3">9</a>. 

Journal of Applied Mathematics

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Table 3

Table 3: Approximating the Inverse of a Square Matrix with Application in Computation of the Moore-Penrose Inverse 