=ADD= =reftype= 14 =number= 00-33 =url= ftp://ftp.risc.uni-linz.ac.at/pub/techreports/2000/00-33.ps.gz =year= 2000 =month= 12 =author= Bodnar; G\'{a}bor + Pau; Petru + Schicho; Josef =title= Exact Real Computation in Computer Algebra =abstract= This paper describes our approach to represent computable real numbers in Maple. We aimed at a model that can be used in symbolic computation. The main topics we discuss are: representation and arithmetic of exact real numbers, vectors and matrices; polynomial arithmetic and root computation. Some operations raise ill-posed problems; we used regularization methods to solve them. We also give non-trivial examples of the theory that supports our algorithms. =sponsor= FWF project SFB-013, subproject F1303 =keywords= computable reals, exact real number arithmetic, regularization methods