JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3RbrtoArray(); for ($x = 0; $x < $dimensions; ++$x) { $grid[$x][$x] = 1; } return new Matrix($grid); } }