 class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">ceil</span><span class="p">(</span><span class="mf">1.20671</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">resolution</span> <span class="o">/</span> <span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="n">temp</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.