public function getColumnPackedCopy()
    {
        $P = [];
        for ($i = 0; $i < $this->m; $i++) {
            for ($j = 0; $j < $this->n; $j++) {
                array_push($P, $this->A[$j][$i]);
            }
        }
        return $P;
    }
public function getColumnPackedCopy()
    {
        $P = [];
        for ($i = 0; $i < $this->m; $i++) {
            for ($j = 0; $j < $this->n; $j++) {
                array_push($P, $this->A[$j][$i]);
            }
        }
        return $P;
    }
public function getColumnPackedCopy ( ) { $ P = [ ] ; for ( $ i = 0 ; $ i < $ this -> m ; $ i ++ ) { for ( $ j = 0 ; $ j < $ this -> n ; $ j ++ ) { array_push ( $ P , $ this -> A [ $ j ] [ $ i ] ) ; } } return $ P ; }
getColumnPacked
Get a column-packed array
@return array Column-packed matrix array
getColumnPacked Get a column - packed array