ss="n">tol</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">eps</span><span class="o">*</span><span class="nb">dble</span><span class="p">(</span><span class="mi">2</span><span class="o">*</span><span class="n">max0</span><span class="p">(</span><span class="n">m</span><span class="p">,</span><span class="n">n</span><span class="p">))</span><span class="o">*</span><span class="n">tol</span>
<span class="w">   </span><span class="n">k</span><span class="w"> </span