ist across iterations.</p>
<p>Next, the joint system <span class="math inline">\((\theta,\rho)\)</span> made up of the current
parameter values <span class="math inline">\(\theta\)</span> and new momentum <span class="math inline">\(\rho\)</span> is evolved via
Hamilton’s equations,</p>
<p><span class="math display">\[
\begin{array}{rcccl}
\displaystyle
\frac{d\theta}{dt}
&amp; = &amp;
\displaystyle
+ \frac{\partial H}{\partial \rho}
&amp; = &amp;
\displaystyle
+ \frac{\partial T}{\partial \rho}
\\[12pt]
