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<hr><h1>scextrap.h</h1><div class="fragment"><pre>00001 <font class="comment">//</font>
00002 <font class="comment">// scextrap.h</font>
00003 <font class="comment">//</font>
00004 <font class="comment">// Copyright (C) 1996 Limit Point Systems, Inc.</font>
00005 <font class="comment">//</font>
00006 <font class="comment">// Author: Curtis Janssen <cljanss@limitpt.com></font>
00007 <font class="comment">// Maintainer: LPS</font>
00008 <font class="comment">//</font>
00009 <font class="comment">// This file is part of the SC Toolkit.</font>
00010 <font class="comment">//</font>
00011 <font class="comment">// The SC Toolkit is free software; you can redistribute it and/or modify</font>
00012 <font class="comment">// it under the terms of the GNU Library General Public License as published by</font>
00013 <font class="comment">// the Free Software Foundation; either version 2, or (at your option)</font>
00014 <font class="comment">// any later version.</font>
00015 <font class="comment">//</font>
00016 <font class="comment">// The SC Toolkit is distributed in the hope that it will be useful,</font>
00017 <font class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00018 <font class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</font>
00019 <font class="comment">// GNU Library General Public License for more details.</font>
00020 <font class="comment">//</font>
00021 <font class="comment">// You should have received a copy of the GNU Library General Public License</font>
00022 <font class="comment">// along with the SC Toolkit; see the file COPYING.LIB. If not, write to</font>
00023 <font class="comment">// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.</font>
00024 <font class="comment">//</font>
00025 <font class="comment">// The U.S. Government is granted a limited license as per AL 91-7.</font>
00026 <font class="comment">//</font>
00027
00028 <font class="preprocessor">#ifndef _math_optimize_scextrap_h</font>
00029 <font class="preprocessor"></font><font class="preprocessor">#define _math_optimize_scextrap_h</font>
00030 <font class="preprocessor"></font>
00031 <font class="preprocessor">#ifdef __GNUC__</font>
00032 <font class="preprocessor"></font><font class="preprocessor">#pragma interface</font>
00033 <font class="preprocessor"></font><font class="preprocessor">#endif</font>
00034 <font class="preprocessor"></font>
00035 <font class="preprocessor">#include <util/class/class.h></font>
00036 <font class="preprocessor">#include <util/state/state.h></font>
00037 <font class="preprocessor">#include <util/keyval/keyval.h></font>
00038
00039 <font class="keyword">namespace </font>sc {
00040
<a name="l00043"></a><a class="code" href="class_sc__SCExtrapData.html">00043</a> <font class="keyword">class </font>SCExtrapData: <font class="keyword">public</font> SavableState {
00044 <font class="keyword">public</font>:
00046 <a class="code" href="class_sc__SCExtrapData.html#a0">SCExtrapData</a>();
00048 <a class="code" href="class_sc__SCExtrapData.html#a0">SCExtrapData</a>(StateIn&);
00049 <font class="keyword">virtual</font> ~SCExtrapData();
00050
00051 <font class="keywordtype">void</font> <a class="code" href="class_sc__SCExtrapData.html#a3">save_data_state</a>(StateOut&);
00052
00054 <font class="keyword">virtual</font> SCExtrapData* <a class="code" href="class_sc__SCExtrapData.html#a4">copy</a>() = 0;
00056 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__SCExtrapData.html#a5">zero</a>() = 0;
00059 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__SCExtrapData.html#a6">accumulate_scaled</a>(<font class="keywordtype">double</font> scale, <font class="keyword">const</font> Ref<SCExtrapData>&) = 0;
00060 };
00061
00062
<a name="l00065"></a><a class="code" href="class_sc__SCExtrapError.html">00065</a> <font class="keyword">class </font>SCExtrapError: <font class="keyword">public</font> SavableState {
00066 <font class="keyword">public</font>:
00068 <a class="code" href="class_sc__SCExtrapError.html#a0">SCExtrapError</a>();
00070 <a class="code" href="class_sc__SCExtrapError.html#a0">SCExtrapError</a>(StateIn&);
00071 <font class="keyword">virtual</font> ~SCExtrapError();
00072
00073 <font class="keywordtype">void</font> <a class="code" href="class_sc__SCExtrapError.html#a3">save_data_state</a>(StateOut&);
00074
00076 <font class="keyword">virtual</font> <font class="keywordtype">double</font> <a class="code" href="class_sc__SCExtrapError.html#a4">error</a>() = 0;
00078 <font class="keyword">virtual</font> <font class="keywordtype">double</font> <a class="code" href="class_sc__SCExtrapError.html#a5">scalar_product</a>(<font class="keyword">const</font> Ref<SCExtrapError>&) = 0;
00079 };
00080
00081
<a name="l00087"></a><a class="code" href="class_sc__SelfConsistentExtrapolation.html">00087</a> <font class="keyword">class </font>SelfConsistentExtrapolation: <font class="keyword">public</font> SavableState {
00088 <font class="keyword">private</font>:
00089 <font class="keywordtype">double</font> error_;
00090 <font class="keywordtype">int</font> errorset_;
00091 <font class="keywordtype">double</font> tolerance_;
00092 <font class="keyword">protected</font>:
00093 <font class="keywordtype">void</font> set_error(<font class="keywordtype">double</font> e)<font class="keyword"> </font>{ error_ = e; errorset_ = 1; }
00094 <font class="keyword">public</font>:
00095 <a class="code" href="class_sc__SelfConsistentExtrapolation.html#a2">SelfConsistentExtrapolation</a>();
00096 <a class="code" href="class_sc__SelfConsistentExtrapolation.html#a2">SelfConsistentExtrapolation</a>(StateIn&);
00100 <a class="code" href="class_sc__SelfConsistentExtrapolation.html#a2">SelfConsistentExtrapolation</a>(<font class="keyword">const</font> Ref<KeyVal>&);
00101 ~SelfConsistentExtrapolation();
00102
00103 <font class="keywordtype">void</font> <a class="code" href="class_sc__SelfConsistentExtrapolation.html#a4">save_data_state</a>(StateOut&);
00104
00105 <font class="keywordtype">void</font> set_tolerance(<font class="keywordtype">double</font> t)<font class="keyword"> </font>{ tolerance_ = t; }
00106 <font class="keywordtype">double</font> tolerance()<font class="keyword"> </font>{ <font class="keywordflow">return</font> tolerance_; }
00107 <font class="keywordtype">double</font> error()<font class="keyword"> </font>{ <font class="keywordflow">return</font> error_; }
00108
00109 <font class="keywordtype">int</font> converged()<font class="keyword"> </font>{ <font class="keywordflow">return</font> errorset_? error_ <= tolerance_ : 0; }
00110
00111 <font class="comment">// Makes a copy of data and returns the extrapolation in</font>
00112 <font class="comment">// data. A reference to error is saved so a copy must</font>
00113 <font class="comment">// be given to extrapolate if error could be changed.</font>
00114 <font class="keyword">virtual</font> <font class="keywordtype">int</font> extrapolate(<font class="keyword">const</font> Ref<SCExtrapData>& data,
00115 <font class="keyword">const</font> Ref<SCExtrapError>& error) = 0;
00116
00117 <font class="comment">// Extrapolation should be started when this is called,</font>
00118 <font class="comment">// if it hasn't already started. The default starting</font>
00119 <font class="comment">// point is implemenation dependent. This member might</font>
00120 <font class="comment">// do nothing in some implementations.</font>
00121 <font class="keyword">virtual</font> <font class="keywordtype">void</font> start_extrapolation();
00122
00123 <font class="keyword">virtual</font> <font class="keywordtype">void</font> reinitialize() =0;
00124 };
00125
00126 }
00127
00128 <font class="preprocessor">#endif</font>
00129 <font class="preprocessor"></font>
00130 <font class="comment">// Local Variables:</font>
00131 <font class="comment">// mode: c++</font>
00132 <font class="comment">// c-file-style: "CLJ"</font>
00133 <font class="comment">// End:</font>
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