KnowraRational approximationLinked fromLinked fromThe 12 pages that link to Rational approximation, each with the reason it gives.All 12Related 4Narrower topic 5Compared with 3Rational numberRelated: Rational numbers can approximate every real number arbitrarily closely.PiRelated: Fractions such as 22/7 approximate pi but never equal it.Hardy–Littlewood circle methodRelated: Dirichlet’s approximation theorem ensures every phase lies near a rational point or in a manageable minor-arc region.Computable numberRelated: Computability is defined by the ability to produce such approximations on demand.