1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Class template default_step_adjuster</title> 5<link rel="stylesheet" href="../../../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../index.html" title="Chapter 1. Boost.Numeric.Odeint"> 8<link rel="up" href="../../../header/boost/numeric/odeint/stepper/controlled_runge_kutta_hpp.html" title="Header <boost/numeric/odeint/stepper/controlled_runge_kutta.hpp>"> 9<link rel="prev" href="default_error_checker.html" title="Class template default_error_checker"> 10<link rel="next" href="../../../header/boost/numeric/odeint/stepper/controlled_step_result_hpp.html" title="Header <boost/numeric/odeint/stepper/controlled_step_result.hpp>"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../logo.jpg"></td> 15<td align="center"><a href="../../../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="default_error_checker.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/numeric/odeint/stepper/controlled_runge_kutta_hpp.html"><img src="../../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../../../header/boost/numeric/odeint/stepper/controlled_step_result_hpp.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="refentry"> 26<a name="boost.numeric.odeint.default_step_adjuster"></a><div class="titlepage"></div> 27<div class="refnamediv"> 28<h2><span class="refentrytitle">Class template default_step_adjuster</span></h2> 29<p>boost::numeric::odeint::default_step_adjuster</p> 30</div> 31<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 32<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../../header/boost/numeric/odeint/stepper/controlled_runge_kutta_hpp.html" title="Header <boost/numeric/odeint/stepper/controlled_runge_kutta.hpp>">boost/numeric/odeint/stepper/controlled_runge_kutta.hpp</a>> 33 34</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Value<span class="special">,</span> <span class="keyword">typename</span> Time<span class="special">></span> 35<span class="keyword">class</span> <a class="link" href="default_step_adjuster.html" title="Class template default_step_adjuster">default_step_adjuster</a> <span class="special">{</span> 36<span class="keyword">public</span><span class="special">:</span> 37 <span class="comment">// types</span> 38 <span class="keyword">typedef</span> <span class="identifier">Time</span> <a name="boost.numeric.odeint.default_step_adjuster.time_type"></a><span class="identifier">time_type</span><span class="special">;</span> 39 <span class="keyword">typedef</span> <span class="identifier">Value</span> <a name="boost.numeric.odeint.default_step_adjuster.value_type"></a><span class="identifier">value_type</span><span class="special">;</span> 40 41 <span class="comment">// <a class="link" href="default_step_adjuster.html#boost.numeric.odeint.default_step_adjusterconstruct-copy-destruct">construct/copy/destruct</a></span> 42 <a class="link" href="default_step_adjuster.html#idm45875526649664-bb"><span class="identifier">default_step_adjuster</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_type</span> <span class="special">=</span> <span class="keyword">static_cast</span><span class="special"><</span> <span class="identifier">time_type</span> <span class="special">></span><span class="special">(</span><span class="number">0</span><span class="special">)</span><span class="special">)</span><span class="special">;</span> 43 44 <span class="comment">// <a class="link" href="default_step_adjuster.html#idm45875526659136-bb">public member functions</a></span> 45 <span class="identifier">time_type</span> <a class="link" href="default_step_adjuster.html#idm45875526658576-bb"><span class="identifier">decrease_step</span></a><span class="special">(</span><span class="identifier">time_type</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">value_type</span><span class="special">,</span> <span class="keyword">const</span> <span class="keyword">int</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 46 <span class="identifier">time_type</span> <a class="link" href="default_step_adjuster.html#idm45875526655392-bb"><span class="identifier">increase_step</span></a><span class="special">(</span><span class="identifier">time_type</span><span class="special">,</span> <span class="identifier">value_type</span><span class="special">,</span> <span class="keyword">const</span> <span class="keyword">int</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 47 <span class="keyword">bool</span> <a class="link" href="default_step_adjuster.html#idm45875526652208-bb"><span class="identifier">check_step_size_limit</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_type</span><span class="special">)</span><span class="special">;</span> 48 <span class="identifier">time_type</span> <a class="link" href="default_step_adjuster.html#idm45875526650672-bb"><span class="identifier">get_max_dt</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 49<span class="special">}</span><span class="special">;</span></pre></div> 50<div class="refsect1"> 51<a name="idm45600374769520"></a><h2>Description</h2> 52<div class="refsect2"> 53<a name="idm45600374769104"></a><h3> 54<a name="boost.numeric.odeint.default_step_adjusterconstruct-copy-destruct"></a><code class="computeroutput">default_step_adjuster</code> 55 public 56 construct/copy/destruct</h3> 57<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm45875526649664-bb"></a><span class="identifier">default_step_adjuster</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_type</span> max_dt <span class="special">=</span> <span class="keyword">static_cast</span><span class="special"><</span> <span class="identifier">time_type</span> <span class="special">></span><span class="special">(</span><span class="number">0</span><span class="special">)</span><span class="special">)</span><span class="special">;</span></pre></li></ol></div> 58</div> 59<div class="refsect2"> 60<a name="idm45600374756912"></a><h3> 61<a name="idm45875526659136-bb"></a><code class="computeroutput">default_step_adjuster</code> public member functions</h3> 62<div class="orderedlist"><ol class="orderedlist" type="1"> 63<li class="listitem"><pre class="literallayout"><span class="identifier">time_type</span> <a name="idm45875526658576-bb"></a><span class="identifier">decrease_step</span><span class="special">(</span><span class="identifier">time_type</span> dt<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">value_type</span> error<span class="special">,</span> 64 <span class="keyword">const</span> <span class="keyword">int</span> error_order<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li> 65<li class="listitem"><pre class="literallayout"><span class="identifier">time_type</span> <a name="idm45875526655392-bb"></a><span class="identifier">increase_step</span><span class="special">(</span><span class="identifier">time_type</span> dt<span class="special">,</span> <span class="identifier">value_type</span> error<span class="special">,</span> 66 <span class="keyword">const</span> <span class="keyword">int</span> stepper_order<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li> 67<li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idm45875526652208-bb"></a><span class="identifier">check_step_size_limit</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_type</span> dt<span class="special">)</span><span class="special">;</span></pre></li> 68<li class="listitem"><pre class="literallayout"><span class="identifier">time_type</span> <a name="idm45875526650672-bb"></a><span class="identifier">get_max_dt</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li> 69</ol></div> 70</div> 71</div> 72</div> 73<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 74<td align="left"></td> 75<td align="right"><div class="copyright-footer">Copyright © 2009-2015 Karsten Ahnert and Mario Mulansky<p> 76 Distributed under the Boost Software License, Version 1.0. (See accompanying 77 file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) 78 </p> 79</div></td> 80</tr></table> 81<hr> 82<div class="spirit-nav"> 83<a accesskey="p" href="default_error_checker.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/numeric/odeint/stepper/controlled_runge_kutta_hpp.html"><img src="../../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../../../header/boost/numeric/odeint/stepper/controlled_step_result_hpp.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 84</div> 85</body> 86</html> 87
