The scientific package

[Tags:benchmark, bsd3, library, test]

Data.Scientific provides the number type Scientific. Scientific numbers are arbitrary precision and space efficient. They are represented using scientific notation. The implementation uses a coefficient c :: Integer and a base-10 exponent e :: Int. A scientific number corresponds to the Fractional number: fromInteger c * 10 ^^ e.

Note that since we're using an Int to represent the exponent these numbers aren't truly arbitrary precision. I intend to change the type of the exponent to Integer in a future release.

The main application of Scientific is to be used as the target of parsing arbitrary precision numbers coming from an untrusted source. The advantages over using Rational for this are that:

 > read "1e1000000000" :: Scientific


Change log changelog
Dependencies base (>=4.3 && <4.10), binary (>=0.4.1 && <0.9), bytestring (>=0.9 && <0.11), bytestring-builder (>=0.10.4 && <0.11), containers (>=0.1 && <0.6), deepseq (>=1.3 && <1.5), ghc-prim, hashable (>=1.1.2 && <1.3), integer-gmp, integer-simple, text (>=0.8 && <1.3), vector (>=0.5 && <0.12) [details]
License BSD3
Author Bas van Dijk
Maintainer Bas van Dijk <>
Stability Unknown
Category Data
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Source repository head: git clone git://
Uploaded Mon Jul 11 21:26:58 UTC 2016 by BasVanDijk
Distributions Arch:, Debian:, Fedora:, FreeBSD:, LTSHaskell:, NixOS:, Stackage:, Tumbleweed:
Downloads 199130 total (96 in the last 30 days)
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Status Docs available [build log]
Last success reported on 2016-07-11 [all 1 reports]




bytestring-builderDepend on the bytestring-builder package for backwards compatibility.DisabledAutomatic
integer-simpleUse the integer-simple package instead of integer-gmpDisabledAutomatic

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