class SubMatrix implements Cloneable {

    public SubMatrix transpose() {
        return new SubMatrix(m_data, m_start, m_ncols, m_nrows, m_col_inc,
                m_row_inc);
    }

    public  SubMatrix(final double[] data, final int nrows, final int ncols);
    public  SubMatrix(final double[] data, final int start, final int nrows,
            final int ncols, final int rowinc, final int colinc);
    public  SubMatrix(final SubMatrix m);

}