Conics as envelopes: Family of ellipses and hyperbolas

For more details check the link below:[br][br][url=https://doi.org/10.1080/07468342.2019.1560207]https://doi.org/10.1080/07468342.2019.1560207[/url]
– Juan Carlos Ponce Campuzano

Information: Conics as envelopes: Family of ellipses and hyperbolas