 <td class="paramtype">int *&nbsp;</td>
          <td class="paramname"> <em>kase</em></td><td>&nbsp;</td>
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          <td>)</td>
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<p>
<pre>
   Purpose   
   =======</pre><p>
<pre>   ZLACON estimates the 1-norm of a square matrix A.   
   Reverse communication is used for evaluating matrix-vector products.</pre><p>
<pre>   Arguments   
   =========</pre><p>