EntityQ2983648· pop 16· linked from 19 articlescartesian ovalSign in to savethe set of points that have the same linear combination of distances from two fixed pointsConnectionsIsaac NewtonPersonRené DescartesEntitygeometryEntityInternational Standard Book NumberEntityJames Clerk MaxwellEntitycircleEntityopticsEntityreal numberEntitysetEntitydifferential equationEntityellipseEntitylensEntityhyperbolaEntityUniversity of St AndrewsEntitySnell's lawEntityMartin GardnerEntityovalEntitylocusEntityMichel ChaslesEntitydisjoint setsEntityCategoriesQuartic curves