$\left(2,-3\right)$\left(2,-3\right)

$\displaystyle \left(-\sqrt{2},-\sqrt{3}\right)$\displaystyle \left(-\sqrt{2},-\sqrt{3}\right)

$\displaystyle \left(-2,3\right)$\displaystyle \left(-2,3\right)

$\displaystyle \left(\sqrt{2},\sqrt{3}\right)$\displaystyle \left(\sqrt{2},\sqrt{3}\right)