../ ellipse-1.pdf 13-Oct-2024 20:12 2430 ellipse-2.pdf 13-Oct-2024 20:12 2131 ellipse-3.pdf 13-Oct-2024 20:12 19759 ellipse-4.pdf 13-Oct-2024 20:12 9772 ellipse.mp 13-Oct-2024 20:12 1947 hyper-1.pdf 13-Oct-2024 20:12 28292 hyper.mp 13-Oct-2024 20:12 1208