The AERN-Real-Interval package

[Tags:bsd3, library]

A concrete implementation for the refinement-order type classes from AERN-Real in the form of interval arithmetic. The arithmetic supports also anti-consistent intervals (ie [l,r] with l >= r) and maintains monotonicity in the refinement order so that both inner and outer approximations of exact interval expressions can be safely computed.

The package AERN-Real-Double makes it possible to use ordinary machine Double values as endpoints, although limited to its fixed granularity (ie precision).

A package AERN-Real-MPFR will be provided in future to facilitate (via package hmpfr) the use of the MPFR arbitrary granularity (ie precision) floating point numbers as endpoints.

This package does not compile with ghc 7.0.* due to a compiler bug that has been fixed for the 7.2.1 release. Haddock documentation can be found via


Versions 2011.1, 2011.1.0.1
Change log CHANGES
Dependencies AERN-Basics (==2011.1.0.1), AERN-Real (==2011.1.0.1), base (>=4 && <4.3), deepseq (>=1.1 && <2.0), QuickCheck (>=2.1 && <3), test-framework (>=0.2 && <0.4), test-framework-quickcheck2 (>=0.2 && <0.4) [details]
License BSD3
Copyright (c) 2011 Michal Konecny, Jan Duracz
Author Michal Konecny (Aston University)
Stability experimental
Category Data, Math
Home page
Uploaded Wed May 11 11:31:35 UTC 2011 by MichalKonecny
Distributions NixOS:2011.1.0.1
Downloads 790 total (10 in the last 30 days)
0 []
Status Docs not available [build log]
All reported builds failed as of 2016-10-24 [all 14 reports]


  • Numeric
    • AERN
      • Basics
        • Numeric.AERN.Basics.Interval
      • RealArithmetic
        • Numeric.AERN.RealArithmetic.Interval
          • Numeric.AERN.RealArithmetic.Interval.ElementaryFromBasis
          • Numeric.AERN.RealArithmetic.Interval.ElementaryFromFieldOps
          • Numeric.AERN.RealArithmetic.Interval.Mutable
            • Numeric.AERN.RealArithmetic.Interval.Mutable.ElementaryFromFieldOps


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