expand method

MathValue expand(
  1. int row,
  2. int col
)

Implementation

MathValue expand( int row, int col ){
	if( (row >= _row) || (col >= _col) ){
		resize(
			(row >= _row) ? row + 1 : _row,
			(col >= _col) ? col + 1 : _col
			);
	}
	return _val( row, col );
}