def transpose(self, target=None):
    """
    Return a transposed copy of the matrix.
    """
    if not target:
      target = empty((self.shape[1], self.shape[0]))

    err_code = _eigenmat.copy_transpose(self.p_mat, target.p_mat)
    if err_code:
      raise generate_exception(err_code)

    return target

    Return a transposed copy of the matrix.
    
eigenmat/eigenmat.py