       System</a>, <a class="link" href="simple_symplectic_system.html" title="Simple Symplectic System">Simple
        Symplectic System</a> or <a class="link" href="implicit_system.html" title="Implicit System">Implicit
        System</a>. Note that all error steppers are also basic steppers.
      </p>
<h5>
<a name="boost_numeric_odeint.concepts.stepper.h1"></a>
        <span class="phrase"><a name="boost_numeric_odeint.concepts.stepper.refinement_of"></a></span><a class="link" href="stepper.html#boost_n