<div class="gmail_quote">On Wed, Aug 8, 2012 at 4:45 PM, Jinquan Zhong <span dir="ltr"><<a href="mailto:jzhong@scsolutions.com" target="_blank">jzhong@scsolutions.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im"><p class="MsoNormal">What type of math equations, e.g., solve Ax=b or eigenvalue problems?<u></u><u></u></p>
</div><p><u></u><span style="font-size:11.0pt;font-family:Symbol;color:#1f497d"><span>·<span style="font:7.0pt "Times New Roman"">
</span></span></span><u></u><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">A’x=b, where A’=[A^-1 U B]= </span></p></blockquote><div>What does the notation above mean? </div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">sparse matrix at the order of 2 million. B = sparse matrix to be mixed and mingled with A^-1.</span></p>
</blockquote></div><div>What are the dimensions and sparsity of each piece. If you have an "inverse" floating around, what sort of operator is it the inverse of.</div>