(self, i)
Delete the given row.

        Examples
        ========

        >>> from sympy.matrices import eye
        >>> M = eye(3)
        >>> M.row_del(1)
        >>> M
        Matrix([
        [1, 0, 0],
        [0, 0, 1]])

        See Also
        ========

        row
        col_del
Delete the given row.
Delete the given row .
def row_del(self, i):
        """Delete the given row.

        Examples
        ========

        >>> from sympy.matrices import eye
        >>> M = eye(3)
        >>> M.row_del(1)
        >>> M
        Matrix([
        [1, 0, 0],
        [0, 0, 1]])

        See Also
        ========

        row
        col_del
        """
        self._mat = self._mat[:i*self.cols] + self._mat[(i + 1)*self.cols:]
        self.rows -= 1
def row_del ( self , i ) : self . _mat = self . _mat [ : i * self . cols ] + self . _mat [ ( i + 1 ) * self . cols : ] self . rows -= 1