EntityQ6402757· pop 5· linked from 6 articlesLagrange numberSign in to saveConnectionsmathematicsEntityInternational Standard Book NumberEntityrational numberEntityWayback MachineEntityJoseph-Louis LagrangeEntitygolden ratioEntityirrational numberEntityJohann Peter Gustav Lejeune DirichletEntityCambridge University PressEntityJohn Horton ConwayEntityOn-Line Encyclopedia of Integer SequencesEntityMathWorldEntitySpringer Science+Business MediaEntityWolfram ResearchEntityRichard K. GuyEntityzbMATH OpenEntityMarkov numberEntityHurwitz's theoremEntityJ. W. S. CasselsEntityMichel WaldschmidtEntityCategoriesDiophantine approximation