MathPHP\LinearAlgebra\MatrixTest::testGetColumn PHP Method

    public function testGetColumn()
    {
        $A = [[1, 2, 3], [2, 3, 4], [4, 5, 6]];
        $matrix = MatrixFactory::create($A);
        $this->assertEquals([1, 2, 4], $matrix->getColumn(0));
        $this->assertEquals([2, 3, 5], $matrix->getColumn(1));
        $this->assertEquals([3, 4, 6], $matrix->getColumn(2));
    }