/usr/include/opencascade/math_Jacobi.hxx is in libopencascade-foundation-dev 6.5.0.dfsg-2build1.
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// Please do not edit this file; modify original file instead.
// The copyright and license terms as defined for the original file apply to
// this header file considered to be the "object code" form of the original source.
#ifndef _math_Jacobi_HeaderFile
#define _math_Jacobi_HeaderFile
#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
#ifndef _math_Matrix_HeaderFile
#include <math_Matrix.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _math_Vector_HeaderFile
#include <math_Vector.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
#ifndef _Standard_OStream_HeaderFile
#include <Standard_OStream.hxx>
#endif
class StdFail_NotDone;
class math_Matrix;
class math_Vector;
//! This class implements the Jacobi method to find the eigenvalues and <br>
//! the eigenvectors of a real symmetric square matrix. <br>
//! A sort of eigenvalues is done. <br>
class math_Jacobi {
public:
void* operator new(size_t,void* anAddress)
{
return anAddress;
}
void* operator new(size_t size)
{
return Standard::Allocate(size);
}
void operator delete(void *anAddress)
{
if (anAddress) Standard::Free((Standard_Address&)anAddress);
}
//! Given a Real n X n matrix A, this constructor computes all its <br>
//! eigenvalues and eigenvectors using the Jacobi method. <br>
//! The exception NotSquare is raised if the matrix is not square. <br>
//! No verification that the matrix A is really symmetric is done. <br>
Standard_EXPORT math_Jacobi(const math_Matrix& A);
//! Returns true if the computations are successful, otherwise returns false. <br>
Standard_Boolean IsDone() const;
//! Returns the eigenvalues vector. <br>
//! Exception NotDone is raised if calculation is not done successfully. <br>
const math_Vector& Values() const;
//! returns the eigenvalue number Num. <br>
//! Eigenvalues are in the range (1..n). <br>
//! Exception NotDone is raised if calculation is not done successfully. <br>
Standard_Real Value(const Standard_Integer Num) const;
//! returns the eigenvectors matrix. <br>
//! Exception NotDone is raised if calculation is not done successfully. <br>
const math_Matrix& Vectors() const;
//! Returns the eigenvector V of number Num. <br>
//! Eigenvectors are in the range (1..n). <br>
//! Exception NotDone is raised if calculation is not done successfully. <br>
void Vector(const Standard_Integer Num,math_Vector& V) const;
//! Prints information on the current state of the object. <br>
//! Is used to redefine the operator <<. <br>
Standard_EXPORT void Dump(Standard_OStream& o) const;
protected:
private:
Standard_Boolean Done;
math_Matrix AA;
Standard_Integer NbRotations;
math_Vector EigenValues;
math_Matrix EigenVectors;
};
#include <math_Jacobi.lxx>
// other Inline functions and methods (like "C++: function call" methods)
#endif
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