</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">HSed</span> <span class="o">=</span> <span class="mf">1.5</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">VpSed</span> <span class="o">=</span> <span class="mf">2.5</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">VpCrust</span> <span class="o">=</span> <span class="mf">6.5</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">rayp</span> <span class="o">=</span> <span class="mf">0.06</span>
<span class="gp">&gt;&gt;&g