EntityQ1436714· pop 15· linked from 22 articlesFord circleSign in to saveSequence of shapesConnectionsmathematicsEntityRené DescartesEntityInternational Standard Book NumberEntitycircleEntitycomplex numberEntityinfinityEntityrational numberEntitydigital object identifierEntityGunma PrefectureEntityplaneEntityCartesian coordinate systemEntityApollonius of PergaEntityJSTOREntityEuclidean spaceEntitytangentEntitybibcodeEntityQ118398EntitycongruenceEntityRiemann zeta functionEntitycomplex conjugateEntityCategoriesCircle packingFractions (mathematics)