svd.hh

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/*===========================================================================*\
 *                                                                           *
 *                                IsoEx                                      *
 *        Copyright (C) 2002 by Computer Graphics Group, RWTH Aachen         *
 *                         www.rwth-graphics.de                              *
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 *---------------------------------------------------------------------------* 
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 *  This library is free software; you can redistribute it and/or modify it  *
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 *  by the Free Software Foundation, version 2.                              *
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 *  Library General Public License for more details.                         *
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\*===========================================================================*/

//=============================================================================
//
//  SVD decomposition and back-substitution
//
//=============================================================================

#ifndef SVD_HH
#define SVD_HH


//== NAMESPACES ===============================================================
namespace IsoEx {
namespace Math {
//=============================================================================
  
template <typename MAT_MxN,
          typename VEC_M,
          typename MAT_NxN>
bool
svd_decomp( MAT_MxN& A, VEC_M& S, MAT_NxN& V );



template <typename MAT_MxN,
          typename VEC_N,
          typename MAT_NxN,
          typename VEC_M>
void
svd_backsub( const MAT_MxN& A, const VEC_M& S, const MAT_NxN& V,
             const VEC_M& b, VEC_N& x );



//=============================================================================
} // namespace Math
} // namespace IsoEx
//=============================================================================
#if defined(INCLUDE_TEMPLATES) && !defined(SVD_C)
#define SVD_TEMPLATES
#include "svd.cc"
#endif
//=============================================================================
#endif // SVD_HH defined
//=============================================================================