scientific: Numbers represented using scientific notation

[ bsd3, data, library ] [ Propose Tags ]

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
1.0e1000000000
Versions 0.0.0.0, 0.0.0.1, 0.0.0.2, 0.1.0.0, 0.1.0.1, 0.2.0.0, 0.2.0.1, 0.2.0.2, 0.3.0.0, 0.3.0.1, 0.3.0.2, 0.3.1.0, 0.3.2.0, 0.3.2.1, 0.3.2.2, 0.3.3.0, 0.3.3.1, 0.3.3.2, 0.3.3.3, 0.3.3.4, 0.3.3.5, 0.3.3.6, 0.3.3.7, 0.3.3.8, 0.3.4.0, 0.3.4.1, 0.3.4.2, 0.3.4.3, 0.3.4.4, 0.3.4.5, 0.3.4.6, 0.3.4.7, 0.3.4.8, 0.3.4.9, 0.3.4.10, 0.3.4.11, 0.3.4.12, 0.3.4.13, 0.3.4.14, 0.3.4.15, 0.3.5.0, 0.3.5.1, 0.3.5.2, 0.3.5.3, 0.3.6.0, 0.3.6.1, 0.3.6.2
Change log changelog
Dependencies base (>=4.5 && <4.9), binary (>=0.4.1 && <0.8), bytestring (==0.10.*), 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 (>=0.7 && <0.12) [details]
License BSD-3-Clause
Author Bas van Dijk
Maintainer Bas van Dijk <v.dijk.bas@gmail.com>
Revised Revision 2 made by HerbertValerioRiedel at Mon Jan 2 15:35:12 UTC 2017
Category Data
Home page https://github.com/basvandijk/scientific
Bug tracker https://github.com/basvandijk/scientific/issues
Source repo head: git clone git://github.com/basvandijk/scientific.git
Uploaded by BasVanDijk at Tue Oct 6 10:33:08 UTC 2015
Distributions Arch:0.3.6.2, Debian:0.3.4.4, Fedora:0.3.6.2, FreeBSD:0.3.3.8, LTSHaskell:0.3.6.2, NixOS:0.3.6.2, Stackage:0.3.6.2, openSUSE:0.3.6.2
Downloads 334795 total (792 in the last 30 days)
Rating 1.75 (votes: 2) [estimated by rule of succession]
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Status Docs available [build log]
Last success reported on 2015-10-06 [all 1 reports]
Hackage Matrix CI

Modules

[Index]

Flags

NameDescriptionDefaultType
bytestring-builder

Provide the Data.ByteString.Builder.Scientific module (requires bytestring >= 0.10)

EnabledManual
integer-simple

Use the integer-simple package instead of integer-gmp

DisabledAutomatic

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

Downloads

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