[Haskell-cafe] money type ?
simon at joyful.com
Thu Jul 12 03:42:46 EDT 2007
Good day all,
my budding ledger program could not balance transactions exactly because of
rounding error with Double. I *think* I got it working better with Rational
(it was late). Another suggestion from #haskell was to multiply all money
by 100. I'm tracking multiple currencies/commodities with varying precision
so this gets a bit more complicated.
Is there a type or library out there that's good for representing money and
other quantities while avoiding rounding errors ?
Best - Simon
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