matrix_regression.cc

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 /*                                                                       */
 /*                 Author: Richard Caley (rjc@cstr.ed.ac.uk)             */
 /*                   Date: Tue Jul 22 1997                               */
 /* --------------------------------------------------------------------- */
 /* Example of matrix class use.                                          */
 /*                                                                       */
 /*************************************************************************/

#include <cstdlib>
#include <iostream>
#include "EST_TMatrix.h"
#include "EST_String.h"


/**@name matrix_example
  * 
  * some stuff about matrices
  *
  * @see EST_TMatrix
  */
//@{

int main(void)
{
  EST_TMatrix<int> m(5,5);

  cout << "EST_TVector<int> size = " << sizeof(EST_TVector<int>) << " bytes.\n";
  cout << "EST_TMatrix<int> size = " << sizeof(EST_TMatrix<int>) << " bytes.\n";

  for(int i=0; i<m.num_rows(); i++)
    for(int j=0; j<m.num_columns(); j++)
      m.a(i,j) = i*100+j;

  cout << "Initial Matrix\n";
  m.save("-");
  cout << "\n";

  m.resize(m.num_rows(), m.num_columns());

  cout << "Same Sized Matrix\n";
  m.save("-");
  cout << "\n";

  m.resize(m.num_rows()*2, m.num_columns()*2);

  cout << "Double Sized Matrix\n";
  m.save("-");
  cout << "\n";

  for(int i2=0; i2<m.num_rows(); i2++)
    for(int j2=0; j2<m.num_columns(); j2++)
      m.a(i2,j2) = i2*1000+j2;

  cout << "Reset Matrix\n";
  m.save("-");
  cout << "\n";

  m.resize(m.num_rows()/2, m.num_columns()/2);

  cout << "Half Sized Matrix\n";
  m.save("-");
  cout << "\n";

  EST_TVector<int> v(5);

  for(int i7=0; i7<v.num_columns(); i7++)
    v[i7] = i7;

  cout << v << "\n";

  v.resize(5);

  cout << v << "\n";

  v.resize(10);

  cout << v << "\n";

  for(int i8=0; i8<v.num_columns(); i8++)
    v[i8] = 500 + i8;

  cout << v << "\n";

  v.resize(5, 0);

  return(0);
}

//@}