MCordingley\LinearAlgebraTest\MatrixTest::testMap PHP Method

    public function testMap()
    {
        $matrix = new Matrix([[1, 2], [3, 4]]);
        $mapped = $matrix->map(function ($value, $row, $column) {
            return $value + $row + $column;
        });
        static::assertEquals(1, $mapped->get(0, 0));
        static::assertEquals(3, $mapped->get(0, 1));
        static::assertEquals(4, $mapped->get(1, 0));
        static::assertEquals(6, $mapped->get(1, 1));
    }