If the goal is to filter a list for numbers which are multiples of some other number, perhaps the =mod= function would be a neater way to do this. It is part of the Prelude with documentation here: https://hackage.haskell.org/package/base-4.12.0.0/docs/Prelude.html#v:mod On Thu, Jan 9, 2020 at 12:01 PM wrote:

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Today's Topics:

1. why doesn't this work? (Alexander Chen) 2. Re: why doesn't this work? (Oliver Charles) 3. Re: why doesn't this work? (Ut Primum)

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Message: 1 Date: Wed, 8 Jan 2020 16:01:20 +0100 (CET) From: Alexander Chen To: beginners@haskell.org Subject: [Haskell-beginners] why doesn't this work? Message-ID: <675050120.318296.1578495680883@ichabod.co-bxl> Content-Type: text/plain; charset="utf-8"

hi,

for a List comprehension I want to only include the integers of a division. In my beginners mind this should work:

(round (x / y)) == (x / y)

however, i get a nontrivial error blurp.

what am i doing wrong?

best,

Alexander