pan style="color: #408080; font-style: italic"># Actual time</span>
plt<span style="color: #666666">.</span>axvline(x<span style="color: #666666">=</span>t, color<span style="color: #666666">=</span><span style="color: #BA2121">&#39;black&#39;</span>, ls <span style="color: #666666">=</span><span style="color: #BA2121">&#39;--&#39;</span>)
ax<span style="color: #666666">.</span>annotate(<span style="color: #BA2121">&#39;T={:.1f}&#39;</span><span style="color: #666666">.</span>format(t), xy<span style="color