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<title>EO: eig.h Source File</title>
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<h1>eig.h</h1><div class="fragment"><pre class="fragment">00001 <span class="preprocessor">#ifndef EIG_H__</span>
00002 <span class="preprocessor"></span><span class="preprocessor">#define EIG_H__</span>
00003 <span class="preprocessor"></span>
00004 <span class="preprocessor">#include &lt;matrices.h&gt;</span>
00005 <span class="preprocessor">#include &lt;valarray&gt;</span>
00006
00007 <span class="keyword">namespace </span>eo {
00008 <span class="comment">/* ========================================================= */</span>
00009 <span class="comment">/* </span>
00010 <span class="comment"> Calculating eigenvalues and vectors. </span>
00011 <span class="comment"> Input: </span>
00012 <span class="comment"> N: dimension.</span>
00013 <span class="comment"> C: lower_triangular NxN-matrix.</span>
00014 <span class="comment"> niter: number of maximal iterations for QL-Algorithm. </span>
00015 <span class="comment"> Output: </span>
00016 <span class="comment"> diag: N eigenvalues.</span>
00017 <span class="comment"> Q: Columns are normalized eigenvectors.</span>
00018 <span class="comment"> return: number of iterations in QL-Algorithm.</span>
00019 <span class="comment"> */</span>
00020 <span class="keyword">extern</span> <span class="keywordtype">int</span> eig( <span class="keywordtype">int</span> N, <span class="keyword">const</span> lower_triangular_matrix&amp; C, std::valarray&lt;double&gt;&amp; diag, square_matrix&amp; Q,
00021 <span class="keywordtype">int</span> niter = 0);
00022
00023 } <span class="comment">// namespace eo</span>
00024
00025 <span class="preprocessor">#endif</span>
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