Re: Break `abs` into two aspects

28 Jan 2020


      Rational is applicable the suggested new functions.

2020년 1월 28일 (화) 오후 7:49, Henning Thielemann 님이
작성:
...
On Tue, 28 Jan 2020, Dannyu NDos wrote:
...
3. Step 2:
Second, I suggest to move `abs` and `signum` from `Num` to `Floating`:
class Floating a where
         abs :: a -> a
         signum :: a -> a
         ...
Rational is not Floating, but has reasonable abs and signum.