">,</span> <span class="mf">0.0</span><span class="p">)]</span> <span class="o">=</span> <span class="mf">1.0</span>
        <span class="n">x</span> <span class="o">=</span> <span class="n">d</span> <span class="o">/</span> <span class="n">x</span>
        <span class="n">y</span><span class="p">,</span> <span class="n">e</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="p">(</span>
            <span class="n">numpy</span><span class="o">.</span><span class="n">z