[Haskell-cafe] Typeclassopedia for numbers

Dominik Schrempf dominik.schrempf at gmail.com
Thu Sep 20 08:59:13 UTC 2018


yes, that is exactly what I was looking for, thank you. Can we include this
figure into the Wiki? If we cannot include the figure directly, I could produce
a similar plot, but I am not an expert in this issue.


Emil Hammarström <emil.a.hammarstrom at gmail.com> writes:

> Hi Dominik,
> Is the hierarchy shown on page 7 on the slides linked below what you are
> looking for?
> http://fileadmin.cs.lth.se/cs/Education/EDAN40/lectures/Types.4.pdf
> On Wed, Sep 19, 2018 at 4:29 PM Dominik Schrempf <dominik.schrempf at gmail.com>
> wrote:
>> Hello,
>> the Typeclassopedia[1] lists standard Haskell (algebraic ?) type classes
>> and
>> their relations. I was wondering if a similar construct also exists for
>> numeric
>> type classes (and probably also their instances), since I am always
>> struggling
>> with how, e.g., 'Integral' number are related to 'Fractional' and so on
>> and so
>> forth.
>> Thanks,
>> Dominik
>> [1] https://wiki.haskell.org/Typeclassopedia
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