span><span class="o">=</span><span class="n">xmax0</span><span class="w"></span>
<span class="w">   </span><span class="n">ymax</span><span class="o">=</span><span class="n">ymax0</span><span class="w"></span>
<span class="w">   </span><span class="k">call </span><span class="n">page</span><span class="p">(</span><span class="mf">0.0</span><span class="p">,</span><span class="n">xmax</span><span class="p">,</span><span class="mf">0.0</span><span class="p">,</span><span class="n">ymax</span><span class="p">)