teroutput"><span class="identifier">make_const_step_range</span></code>,
          but now using <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">accumulate</span></code> from __bost_range:
        </p>
<p>
</p>
<pre class="programlisting"><span class="identifier">runge_kutta4</span><span class="special">&lt;</span> <span class="identifier">state_type</span> <span class="special">&gt;</span> <span class="identifier">stepper</span><span