Beispiel #1
0
/**
Return total sum of all elements in matrix.

\param matrix dmatrix
*/
double sum(const dmatrix& matrix)
{
  double total = 0.0;
  for (int i = matrix.rowmin(); i <= matrix.rowmax(); ++i)
  {
    total += sum(matrix.elem(i));
  }
  return total;
}
Beispiel #2
0
/**
Return the sum of the diagonal of a square matrix mat.

\param mat is a square scalar matrix
*/
double trace(const dmatrix& mat)
{
  if (mat.colmin() != mat.rowmin() || mat.colmax() != mat.rowmax() )
  {
    cerr << "Matrix not square in trace\n";
    ad_exit(1);
  }

  double sum = 0.0;
  for (int i = mat.colmin(); i <= mat.colmax(); ++i)
  {
    sum += mat.elem(i, i);
  }
  return sum;
}
Beispiel #3
0
/**
 * Description not yet available.
 * \param
 */
dvar_matrix operator*(const dvar_matrix& m1, const dmatrix& cm2)
 {
   if (m1.colmin() != cm2.rowmin() || m1.colmax() != cm2.rowmax())
   {
     cerr << " Incompatible array bounds in "
     "dmatrix operator*(const dvar_matrix& x, const dmatrix& m)\n";
     ad_exit(21);
   }
   dmatrix cm1=value(m1);
   //dmatrix cm2=value(m2);
   dmatrix tmp(m1.rowmin(),m1.rowmax(), cm2.colmin(), cm2.colmax());
#ifdef OPT_LIB
   const size_t rowsize = (size_t)cm2.rowsize();
#else
   const int _rowsize = cm2.rowsize();
   assert(_rowsize > 0);
   const size_t rowsize = (size_t)_rowsize;
#endif
   try
   {
     double* temp_col = new double[rowsize];
     temp_col-=cm2.rowmin();
     for (int j=cm2.colmin(); j<=cm2.colmax(); j++)
     {
       for (int k=cm2.rowmin(); k<=cm2.rowmax(); k++)
       {
         temp_col[k] = cm2.elem(k,j);
       }
       for (int i=cm1.rowmin(); i<=cm1.rowmax(); i++)
       {
         double sum=0.0;
         dvector& temp_row = cm1(i);
         for (int k=cm1.colmin(); k<=cm1.colmax(); k++)
         {
           sum+=temp_row(k) * (temp_col[k]);
           // sum+=temp_row(k) * cm2(k,j);
         }
         tmp(i,j)=sum;
       }
     }
     temp_col+=cm2.rowmin();
     delete [] temp_col;
     temp_col = 0;
   }
   catch (std::bad_alloc& e)
   {
     cerr << "Error[" << __FILE__ << ':' << __LINE__
          << "]: Unable to allocate array.\n";
     //ad_exit(21);
     throw e;
   }
   dvar_matrix vtmp=nograd_assign(tmp);
   save_identifier_string("TEST1");
   //m1.save_dvar_matrix_value();
   m1.save_dvar_matrix_position();
   cm2.save_dmatrix_value();
   cm2.save_dmatrix_position();
   vtmp.save_dvar_matrix_position();
   save_identifier_string("TEST6");
   gradient_structure::GRAD_STACK1->
            set_gradient_stack(dmcm_prod);
   return vtmp;
 }