/**
  * @author Burak Künkçü
  * SymmetricMatrix Class
  */

public class SymmetricMatrix
{
  private double[][] matrix;
  private int size;

  // Constructor
  public SymmetricMatrix( int n)
  {
    size = n;
    matrix = new double[size][];

    for ( int i = 0; i < size; i++ )
      matrix[i] = new double[i+1];
  }
  // Copy Constructor
  public SymmetricMatrix( SymmetricMatrix other)
  {
    size = other.size;
    matrix = new double[size][];

    for ( int i = 0; i < size; i++ )
      matrix[i] = new double[i+1];

    for ( int i = 0; i < other.matrix.length; i++ )
    {
      for ( int j = 0; j < other.matrix[i].length; j++ )
        matrix[i][j] = other.matrix[i][j];
    }
  }
//////////////////////////////////////////////////////////////
  public String toString()
  {
    String result = "";

    for ( int i = 0; i < matrix.length; i++ )
    {
      for ( int j = 0; j < matrix[i].length; j++)
      {
        result = result + matrix[i][j] + " ";
      }
      result = result + "\n";
    }

    return (result);
  }
//////////////////////////////////////////////////////////////
  public String toFullString()
  {
    String result = "";

    for ( int i = 0; i < size; i++ )
    {
      for ( int j = 0; j < size; j++ )
      {
        if (i < j)
          result = result + matrix[j][i] + " ";
        else
          result = result + matrix[i][j] + " ";
      }
      result = result + "\n";
    }

    return (result);
  }
//////////////////////////////////////////////////////////////
  public double get( int row, int column)
  {
    double result = 0;

    if ( row < size && column < size)
    {
      if( column < row)
        result = matrix[row][column];
      else
        result  = matrix[column][row];
    }

    return (result);
  }
//////////////////////////////////////////////////////////////
  public void set( int row, int column, double value)
  {
    if ( row < size && column < size)
    {
      if( column < row)
        matrix[row][column] = value;
      else
        matrix[column][row] = value;
    }
  }
//////////////////////////////////////////////////////////////
  public SymmetricMatrix clone()
  {
    SymmetricMatrix newMatrix = new SymmetricMatrix( this.size);

    for ( int i = 0; i < this.matrix.length; i++ )
    {
      for ( int j = 0; j < matrix[i].length; j++ )
        newMatrix.matrix[i][j] = matrix[i][j];
    }

    return (newMatrix);
  }
}