MCordingley\LinearAlgebraTest\MatrixTest::testIdentity PHP Method

    public function testIdentity()
    {
        $identity = Matrix::identity(3);
        static::assertEquals(1, $identity->get(0, 0));
        static::assertEquals(0, $identity->get(0, 1));
        static::assertEquals(0, $identity->get(0, 2));
        static::assertEquals(0, $identity->get(1, 0));
        static::assertEquals(1, $identity->get(1, 1));
        static::assertEquals(0, $identity->get(1, 2));
        static::assertEquals(0, $identity->get(2, 0));
        static::assertEquals(0, $identity->get(2, 1));
        static::assertEquals(1, $identity->get(2, 2));
    }