MathPHP\LinearAlgebra\Matrix::map PHP Метод

    public function map(callable $func) : Matrix
    {
        $m = $this->m;
        $n = $this->n;
        $R = [];
        for ($i = 0; $i < $m; $i++) {
            for ($j = 0; $j < $n; $j++) {
                $R[$i][$j] = $func($this->A[$i][$j]);
            }
        }
        return MatrixFactory::create($R);
    }