MathPHP\LinearAlgebra\Matrix::maxNorm PHP Метод

    public function maxNorm()
    {
        $m = $this->m;
        $n = $this->n;
        $max = abs($this->A[0][0]);
        for ($i = 0; $i < $m; $i++) {
            for ($j = 0; $j < $n; $j++) {
                $max = max($max, abs($this->A[$i][$j]));
            }
        }
        return $max;
    }