class="n">data</span><span class="p">[</span><span class="s1">&#39;t2&#39;</span><span class="p">][</span><span class="mi">0</span><span class="p">])</span>
</pre></div>
</div>
<p>tells you the spacing between the first two points along the <span class="math notranslate nohighlight">\(t_2\)</span> axis.</p>
<p>Also,</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">data</span><span class="p">[</span><span clas