CMatrix::CMatrix operator * (double val, CMatrix &A)
    {
        CMatrix C(A.matrix->rows, A.matrix->columns);

        for(int i=0; i<(A.matrix->rows); i++)
        {
            for(int j=0; j<(A.matrix->columns); j++)
                C.matrix->data[i*A.matrix->columns+j]= (val * A.matrix->data[i*A.matrix->columns+j]);
        }
        return C;
    }