Klasse SquareMatrix, Schnittstelle

// SquareMatrix:
//    quadratic matrix of doubles


#include "Matrix.H"

class SquareMatrix : public Matrix {

  public:

  // creates an n x n square matrix
  SquareMatrix(int n);

  // delete a SquareMatrix
  ~SquareMatrix();

  // matrix multiplication of square matrices gives a square matrix
  void mult(SquareMatrix &b, SquareMatrix &result);

  // returns the trace of a square matrix
  double trace();
};