[Haskell-beginners] import question

[Galaxy Being]

I'm trying to create a list of real numbers with a two-decimal interval, a
la

> [1.0,1.01,1.02,...1.99,2.00]

however, I get the float approximation problem

[1.0,1.01,1.02,1.03,1.04,1.05,1.06,1.07,1.08,1.09,1.1,1.11,1.12,1.1300000000000001,1.1400000000000001,...

So I attempted to compensate with

import Data.Decimal
map (roundTo 2) [1.00,1.01..2.0]

I don't have to do it this way if there is another rounding function to
correct the float overrun issue.



On Wed, Feb 17, 2021 at 2:43 PM Francesco Ariis <fa-ml at ariis.it> wrote:

> Il 17 febbraio 2021 alle 14:17 Galaxy Being ha scritto:
> > How would I install it globally? I'm not using projects, I'm just at the
> > ghci REPL.
>
> Most likely
>
>     cabal install --lib Decimal
>
> Check what Tom has said too —F
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