pkgsrc/math/hs-scientific/DESCR
szptvlfn 8d39c22415 Update to 0.3.3.0
changelog:
0.3.3.0
    * Add the isFloating or isInteger predicates.
      Courtesy of Zejun Wu (@watashi).
    * Add the toRealFloat' and toBoundedInteger functions.
      Courtesy of Fujimura Daisuke (@fujimura).

0.3.2.2
    * Enable package to link with integer-simple instead of
      integer-gmp using the -finteger-simple cabal flag.
      Courtesy of @k0ral.

0.3.2.1

    * Parameterize inclusion of the Data.ByteString.Builder.Scientific
      module using the bytestring-builder flag. Disabling this flag
      allows building on GHC-7.0.4 which has bytestring-0.9 installed
      by default.

0.3.2.0

    * Add the floatingOrInteger function
    * Fix build on GHC-7.0.4
    * More efficient and better behaving magnitude computation
    * Lower the number of cached magnitudes to 324 (same as GHC.Float)

0.3.1.0

    * Don't normalize on construction but do it when pretty-printing
      instead. Also provide a manual normalize function.
    * Improve efficiency of toRealFloat
    * Added note about caching magnitudes
    * Dropped dependency on arithmoi
    * Make benchmark easier to build
    * Add junit XML output support (for Jenkins)

0.3.0.2

    * Lower the minimal QuickCheck version.
    * Make sure sized exponents are generated in the QuickCheck tests.

0.3.0.1

    * Fix build for bytestring-0.10.0.*

0.3.0.0

    * Fix a DoS vulnerability that allowed an attacker to crash the
      process by sending a scientific with a huge exponent like
      1e1000000000.
    * Fix various RealFrac methods.
    * Cache some powers of 10 to speed up the magnitude computation.
    * Normalize scientific numbers on construction.
    * Move the Text Builder to its own module &
      provide a ByteString builder
    * Added more documentation
2014-08-16 21:54:50 +00:00

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Text

Data.Scientific provides a space efficient and arbitrary precision
scientific number type.
Scientific numbers are represented using scientific notation. It uses a
coefficient c :: Integer and a base-10 exponent e :: Int (do note that
since we're using an Int to represent the exponent these numbers aren't
truly arbitrary precision). A scientific number corresponds to the
Fractional number: fromInteger c * 10 ^^ e.