ror_stepper_fsal</span><span class="special">&lt;</span> <span class="identifier">runge_kutta_dopri5</span>
            <span class="special">&gt;</span></code>
          </li>
<li class="listitem">
            <code class="computeroutput"><span class="identifier">controlled_error_stepper</span><span class="special">&lt;</span> <span class="identifier">runge_kutta_fehlberg78</span>
            <span class="special">&gt;</span></code>
          </li>
<li class="listitem">
            <code class="computerout