lass="comment">// <a class="link" href="dense_output_r_idp20189216.html#boost.numeric.odeint.dense_output_r_idp20189216construct-copy-destruct">construct/copy/destruct</a></span>
  <a class="link" href="dense_output_r_idp20189216.html#idp20209280-bb"><span class="identifier">dense_output_runge_kutta</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">controlled_stepper_type</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="i