CalculusHelper.h
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00001 /***************************************************************************** 00002 * Copyright (C) 2011 by Benjamin Hadorn (b_hadorn@bluewin.ch) 00003 ***************************************************************************** 00004 * Project : Zeus Math Library 00005 * Module : CalculusHelper 00006 * Package : Zeus.ZeusMath.Calculus 00007 * Author : Martin Abbuehl 00008 * Date : 27.12.2011 00009 * System : Zeus-Framework 00010 ***************************************************************************** 00011 * Licence: * 00012 * This library is free software; you can redistribute it and/or modify * 00013 * it under the terms of the GNU Lesser General Public License as * 00014 * published by the Free Software Foundation; either version * 00015 * 2.1 of the License, or (at your option) any later version. * 00016 * * 00017 * This library is distributed in the hope that it will be useful, * 00018 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00019 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00020 * GNU Lesser General Public License for more details. * 00021 * * 00022 * You should have received a copy of the GNU Lesser General Public * 00023 * License along with this library; if not, write to the Free Software * 00024 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA * 00025 *****************************************************************************/ 00026 00027 /***************************************************************************** 00028 * Changes: 00029 * 27.12.2011 bha: created zeus 2.0 00030 *****************************************************************************/ 00031 00032 #ifndef CalculusHelperH 00033 #define CalculusHelperH 00034 00035 #include <zeusmath/Config/PlatformDefines.hpp> 00036 #include <zeusmath/System/RealRealFunction.hpp> 00037 00038 00039 BEGIN_NAMESPACE_Zeus 00040 00041 /******************************************************************************/ 00044 /******************************************************************************/ 00045 zeusmath_class TCalculusHelper 00046 { 00047 private: 00049 inline TCalculusHelper() { } 00050 00051 public: 00053 static Float evalFunction(RealRealFunction pFunction, const Float& x, Int n = 0); 00054 00056 static Float calcDerivative(RealRealFunction pFunction, const Float& x, Int n = 1); 00057 00059 static Float integrate(RealRealFunction pFunction, const Float& x1, const Float& x2, 00060 bool bIntegrateAbsolutely = false, Int iIntervals = 10000); 00061 00062 private: 00064 typedef Float (*FunctionEvaluatingRealRealFunction)(RealRealFunction, const Float&, Int); 00065 00067 static Float approxDerivative(FunctionEvaluatingRealRealFunction pEvalFunction, 00068 RealRealFunction pFunction, const Float& x, Int n); 00069 00070 }; 00071 00072 00073 END_NAMESPACE_Zeus 00074 00075 #endif 00076