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<title>Class template dense_output_runge_kutta&lt;Stepper, explicit_controlled_stepper_fsal_tag&gt;</title>
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<h2><span class="refentrytitle">Class template dense_output_runge_kutta&lt;Stepper, explicit_controlled_stepper_fsal_tag&gt;</span></h2>
<p>boost::numeric::odeint::dense_output_runge_kutta&lt;Stepper, explicit_controlled_stepper_fsal_tag&gt; &#8212; The class representing dense-output Runge-Kutta steppers with FSAL property. </p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../../header/boost/numeric/odeint/stepper/dense_output_runge_kutta_hpp.html" title="Header &lt;boost/numeric/odeint/stepper/dense_output_runge_kutta.hpp&gt;">boost/numeric/odeint/stepper/dense_output_runge_kutta.hpp</a>&gt;
</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Stepper<span class="special">&gt;</span>
<span class="keyword">class</span> <a class="link" href="dense_output_r_idp40563280.html" title="Class template dense_output_runge_kutta&lt;Stepper, explicit_controlled_stepper_fsal_tag&gt;">dense_output_runge_kutta</a><span class="special">&lt;</span><span class="identifier">Stepper</span><span class="special">,</span> <span class="identifier">explicit_controlled_stepper_fsal_tag</span><span class="special">&gt;</span> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <span class="identifier">Stepper</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.controlled_stepper_type"></a><span class="identifier">controlled_stepper_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">controlled_stepper_type</span><span class="special">::</span><span class="identifier">stepper_type</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.stepper_type"></a><span class="identifier">stepper_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">stepper_type</span><span class="special">::</span><span class="identifier">state_type</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.state_type"></a><span class="identifier">state_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">stepper_type</span><span class="special">::</span><span class="identifier">wrapped_state_type</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.wrapped_state_type"></a><span class="identifier">wrapped_state_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">stepper_type</span><span class="special">::</span><span class="identifier">value_type</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.value_type"></a><span class="identifier">value_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">stepper_type</span><span class="special">::</span><span class="identifier">deriv_type</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.deriv_type"></a><span class="identifier">deriv_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">stepper_type</span><span class="special">::</span><span class="identifier">wrapped_deriv_type</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.wrapped_deriv_type"></a><span class="identifier">wrapped_deriv_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">stepper_type</span><span class="special">::</span><span class="identifier">time_type</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.time_type"></a><span class="identifier">time_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">stepper_type</span><span class="special">::</span><span class="identifier">algebra_type</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.algebra_type"></a><span class="identifier">algebra_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">stepper_type</span><span class="special">::</span><span class="identifier">operations_type</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.operations_type"></a><span class="identifier">operations_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">stepper_type</span><span class="special">::</span><span class="identifier">resizer_type</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.resizer_type"></a><span class="identifier">resizer_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">dense_output_stepper_tag</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.stepper_category"></a><span class="identifier">stepper_category</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">dense_output_runge_kutta</span><span class="special">&lt;</span> <span class="identifier">Stepper</span> <span class="special">&gt;</span> <a name="boost.numeric.odeint.dense_output_r_idp40563280.dense_output_stepper_type"></a><span class="identifier">dense_output_stepper_type</span><span class="special">;</span>
<span class="comment">// <a class="link" href="dense_output_r_idp40563280.html#boost.numeric.odeint.dense_output_r_idp40563280construct-copy-destruct">construct/copy/destruct</a></span>
<a class="link" href="dense_output_r_idp40563280.html#idp40606272-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="identifier">controlled_stepper_type</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span>
<span class="comment">// <a class="link" href="dense_output_r_idp40563280.html#idp40578896-bb">public member functions</a></span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> StateType<span class="special">&gt;</span>
<span class="keyword">void</span> <a class="link" href="dense_output_r_idp40563280.html#idp40579456-bb"><span class="identifier">initialize</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">StateType</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">time_type</span><span class="special">,</span> <span class="identifier">time_type</span><span class="special">)</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="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">time_type</span><span class="special">,</span> <span class="identifier">time_type</span> <span class="special">&gt;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40583216-bb"><span class="identifier">do_step</span></a><span class="special">(</span><span class="identifier">System</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> StateOut<span class="special">&gt;</span> <span class="keyword">void</span> <a class="link" href="dense_output_r_idp40563280.html#idp40585616-bb"><span class="identifier">calc_state</span></a><span class="special">(</span><span class="identifier">time_type</span><span class="special">,</span> <span class="identifier">StateOut</span> <span class="special">&amp;</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> StateOut<span class="special">&gt;</span>
<span class="keyword">void</span> <a class="link" href="dense_output_r_idp40563280.html#idp40588960-bb"><span class="identifier">calc_state</span></a><span class="special">(</span><span class="identifier">time_type</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">StateOut</span> <span class="special">&amp;</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> StateIn<span class="special">&gt;</span> <span class="keyword">bool</span> <a class="link" href="dense_output_r_idp40563280.html#idp40592304-bb"><span class="identifier">resize</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">StateIn</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> StateType<span class="special">&gt;</span> <span class="keyword">void</span> <a class="link" href="dense_output_r_idp40563280.html#idp40594688-bb"><span class="identifier">adjust_size</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">StateType</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">const</span> <span class="identifier">state_type</span> <span class="special">&amp;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40597072-bb"><span class="identifier">current_state</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="identifier">time_type</span> <a class="link" href="dense_output_r_idp40563280.html#idp40598880-bb"><span class="identifier">current_time</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="keyword">const</span> <span class="identifier">state_type</span> <span class="special">&amp;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40600688-bb"><span class="identifier">previous_state</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="identifier">time_type</span> <a class="link" href="dense_output_r_idp40563280.html#idp40602496-bb"><span class="identifier">previous_time</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="identifier">time_type</span> <a class="link" href="dense_output_r_idp40563280.html#idp40604304-bb"><span class="identifier">current_time_step</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="comment">// <a class="link" href="dense_output_r_idp40563280.html#idp40607568-bb">private member functions</a></span>
<span class="identifier">state_type</span> <span class="special">&amp;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40608144-bb"><span class="identifier">get_current_state</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">const</span> <span class="identifier">state_type</span> <span class="special">&amp;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40609680-bb"><span class="identifier">get_current_state</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="identifier">state_type</span> <span class="special">&amp;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40611488-bb"><span class="identifier">get_old_state</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">const</span> <span class="identifier">state_type</span> <span class="special">&amp;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40613024-bb"><span class="identifier">get_old_state</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="identifier">deriv_type</span> <span class="special">&amp;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40614832-bb"><span class="identifier">get_current_deriv</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">const</span> <span class="identifier">deriv_type</span> <span class="special">&amp;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40616368-bb"><span class="identifier">get_current_deriv</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="identifier">deriv_type</span> <span class="special">&amp;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40618176-bb"><span class="identifier">get_old_deriv</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">const</span> <span class="identifier">deriv_type</span> <span class="special">&amp;</span> <a class="link" href="dense_output_r_idp40563280.html#idp40619712-bb"><span class="identifier">get_old_deriv</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="keyword">void</span> <a class="link" href="dense_output_r_idp40563280.html#idp40621520-bb"><span class="identifier">toggle_current_state</span></a><span class="special">(</span><span class="keyword">void</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp113061824"></a><h2>Description</h2>
<p>The interface is the same as for dense_output_runge_kutta&lt; Stepper , stepper_tag &gt;. This class provides dense output functionality based on methods with step size controlled</p>
<p>
</p>
<div class="refsect2">
<a name="idp113063184"></a><h3>Template Parameters</h3>
<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
<pre class="literallayout"><span class="keyword">typename</span> Stepper</pre>
<p>The stepper type of the underlying algorithm. </p>
</li></ol></div>
</div>
<div class="refsect2">
<a name="idp113066368"></a><h3>
<a name="boost.numeric.odeint.dense_output_r_idp40563280construct-copy-destruct"></a><code class="computeroutput">dense_output_runge_kutta</code>
public
construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idp40606272-bb"></a><span class="identifier">dense_output_runge_kutta</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">controlled_stepper_type</span> <span class="special">&amp;</span> stepper <span class="special">=</span> <span class="identifier">controlled_stepper_type</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span></pre></li></ol></div>
</div>
<div class="refsect2">
<a name="idp113076752"></a><h3>
<a name="idp40578896-bb"></a><code class="computeroutput">dense_output_runge_kutta</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> StateType<span class="special">&gt;</span>
<span class="keyword">void</span> <a name="idp40579456-bb"></a><span class="identifier">initialize</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">StateType</span> <span class="special">&amp;</span> x0<span class="special">,</span> <span class="identifier">time_type</span> t0<span class="special">,</span> <span class="identifier">time_type</span> dt0<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> System<span class="special">&gt;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">time_type</span><span class="special">,</span> <span class="identifier">time_type</span> <span class="special">&gt;</span> <a name="idp40583216-bb"></a><span class="identifier">do_step</span><span class="special">(</span><span class="identifier">System</span> system<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> StateOut<span class="special">&gt;</span> <span class="keyword">void</span> <a name="idp40585616-bb"></a><span class="identifier">calc_state</span><span class="special">(</span><span class="identifier">time_type</span> t<span class="special">,</span> <span class="identifier">StateOut</span> <span class="special">&amp;</span> x<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> StateOut<span class="special">&gt;</span>
<span class="keyword">void</span> <a name="idp40588960-bb"></a><span class="identifier">calc_state</span><span class="special">(</span><span class="identifier">time_type</span> t<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">StateOut</span> <span class="special">&amp;</span> x<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> StateIn<span class="special">&gt;</span> <span class="keyword">bool</span> <a name="idp40592304-bb"></a><span class="identifier">resize</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">StateIn</span> <span class="special">&amp;</span> x<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> StateType<span class="special">&gt;</span> <span class="keyword">void</span> <a name="idp40594688-bb"></a><span class="identifier">adjust_size</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">StateType</span> <span class="special">&amp;</span> x<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">const</span> <span class="identifier">state_type</span> <span class="special">&amp;</span> <a name="idp40597072-bb"></a><span class="identifier">current_state</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="identifier">time_type</span> <a name="idp40598880-bb"></a><span class="identifier">current_time</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">const</span> <span class="identifier">state_type</span> <span class="special">&amp;</span> <a name="idp40600688-bb"></a><span class="identifier">previous_state</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="identifier">time_type</span> <a name="idp40602496-bb"></a><span class="identifier">previous_time</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="identifier">time_type</span> <a name="idp40604304-bb"></a><span class="identifier">current_time_step</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp113171952"></a><h3>
<a name="idp40607568-bb"></a><code class="computeroutput">dense_output_runge_kutta</code> private member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"><span class="identifier">state_type</span> <span class="special">&amp;</span> <a name="idp40608144-bb"></a><span class="identifier">get_current_state</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">const</span> <span class="identifier">state_type</span> <span class="special">&amp;</span> <a name="idp40609680-bb"></a><span class="identifier">get_current_state</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="identifier">state_type</span> <span class="special">&amp;</span> <a name="idp40611488-bb"></a><span class="identifier">get_old_state</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">const</span> <span class="identifier">state_type</span> <span class="special">&amp;</span> <a name="idp40613024-bb"></a><span class="identifier">get_old_state</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="identifier">deriv_type</span> <span class="special">&amp;</span> <a name="idp40614832-bb"></a><span class="identifier">get_current_deriv</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">const</span> <span class="identifier">deriv_type</span> <span class="special">&amp;</span> <a name="idp40616368-bb"></a><span class="identifier">get_current_deriv</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="identifier">deriv_type</span> <span class="special">&amp;</span> <a name="idp40618176-bb"></a><span class="identifier">get_old_deriv</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">const</span> <span class="identifier">deriv_type</span> <span class="special">&amp;</span> <a name="idp40619712-bb"></a><span class="identifier">get_old_deriv</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">void</span> <a name="idp40621520-bb"></a><span class="identifier">toggle_current_state</span><span class="special">(</span><span class="keyword">void</span><span class="special">)</span><span class="special">;</span></pre></li>
</ol></div>
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