ber functions</a></span>
  <span class="identifier">order_type</span> <a class="link" href="rosenbrock4.html#idp20523600-bb"><span class="identifier">order</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> System<span class="special">&gt;</span> 
    <span class="keyword">void</span> <a class="link" href="rosenbroc