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d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
125 lines
4.3 KiB
C++
125 lines
4.3 KiB
C++
// Copyright (c) 1997-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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//#ifndef DEB
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#define No_Standard_RangeError
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#define No_Standard_OutOfRange
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#define No_Standard_DimensionError
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//#endif
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#include <Standard_Failure.hxx>
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#include <math_FunctionRoot.ixx>
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#include <math_FunctionSetRoot.hxx>
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#include <math_FunctionSetWithDerivatives.hxx>
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#include <math_FunctionWithDerivative.hxx>
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class math_MyFunctionSetWithDerivatives : public math_FunctionSetWithDerivatives {
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private:
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math_FunctionWithDerivative *Ff;
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public :
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math_MyFunctionSetWithDerivatives (math_FunctionWithDerivative& F );
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Standard_Integer NbVariables () const;
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Standard_Integer NbEquations () const;
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Standard_Boolean Value (const math_Vector& X, math_Vector& F) ;
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Standard_Boolean Derivatives (const math_Vector& X, math_Matrix& D) ;
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Standard_Boolean Values (const math_Vector& X, math_Vector& F, math_Matrix& D) ;
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};
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math_MyFunctionSetWithDerivatives::math_MyFunctionSetWithDerivatives
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(math_FunctionWithDerivative& F ) {
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Ff = &F ;
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}
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Standard_Integer math_MyFunctionSetWithDerivatives::NbVariables () const {
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return 1;
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}
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Standard_Integer math_MyFunctionSetWithDerivatives::NbEquations () const {
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return 1;
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}
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Standard_Boolean math_MyFunctionSetWithDerivatives::Value (const math_Vector& X, math_Vector& Fs) {
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return Ff->Value(X(1),Fs(1));
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}
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Standard_Boolean math_MyFunctionSetWithDerivatives::Derivatives (const math_Vector& X, math_Matrix& D) {
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return Ff->Derivative(X(1),D(1,1));
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}
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Standard_Boolean math_MyFunctionSetWithDerivatives::Values (const math_Vector& X, math_Vector& F, math_Matrix& D) {
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return Ff->Values(X(1),F(1),D(1,1));
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}
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math_FunctionRoot::math_FunctionRoot(math_FunctionWithDerivative& F,
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const Standard_Real Guess,
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const Standard_Real Tolerance,
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const Standard_Integer NbIterations ){
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math_Vector V(1,1), Tol(1,1);
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math_MyFunctionSetWithDerivatives Ff(F);
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V(1)=Guess;
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Tol(1) = Tolerance;
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math_FunctionSetRoot Sol(Ff,V,Tol,NbIterations);
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Done = Sol.IsDone();
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if (Done) {
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F.GetStateNumber();
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TheRoot = Sol.Root()(1);
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TheDerivative = Sol.Derivative()(1,1);
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F.Value(TheRoot,TheError);
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NbIter = Sol.NbIterations();
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}
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}
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math_FunctionRoot::math_FunctionRoot(math_FunctionWithDerivative& F,
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const Standard_Real Guess,
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const Standard_Real Tolerance,
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const Standard_Real A,
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const Standard_Real B,
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const Standard_Integer NbIterations ){
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math_Vector V(1,1),Aa(1,1),Bb(1,1), Tol(1,1);
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math_MyFunctionSetWithDerivatives Ff(F);
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V(1)=Guess;
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Tol(1) = Tolerance;
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Aa(1)=A;
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Bb(1)=B;
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math_FunctionSetRoot Sol(Ff,V,Tol,Aa,Bb,NbIterations);
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Done = Sol.IsDone();
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if (Done) {
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F.GetStateNumber();
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TheRoot = Sol.Root()(1);
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TheDerivative = Sol.Derivative()(1,1);
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F.Value(TheRoot,TheError);
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NbIter = Sol.NbIterations();
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}
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}
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void math_FunctionRoot::Dump(Standard_OStream& o) const {
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o<< "math_FunctionRoot ";
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if(Done) {
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o<< " Status = Done \n";
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o << " Number of iterations = " << NbIter << endl;
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o << " The Root is: " << TheRoot << endl;
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o << "The value at the root is: " << TheError << endl;
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}
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else {
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o<< " Status = not Done \n";
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}
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}
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