[Haskell-beginners] [Haskell-cafe] Mathematical functions with multiple arguments

[Konstantine Rybnikov]

Is `Data.Vector.Fixed.toList` is what you're looking for?

On Thu, Mar 12, 2015 at 1:16 AM, Sumit Sahrawat, Maths & Computing, IIT
(BHU) <sumit.sahrawat.apm13 at iitbhu.ac.in> wrote:

> The fixed-vector package uses a similar technique. The only trouble I'm
> having is with converting Vec v (Double, Double) to [(Double, Double)] for
> further use. I don't want to change all the code, but only the part where
> the user provides me with arguments.
>
> I'll keep looking into it. Thanks for the help.
>
> On 12 March 2015 at 04:44, David Feuer <david.feuer at gmail.com> wrote:
>
>> There are a lot of ways to do this sort of thing, and which one you
>> choose will depend on exactly what you're trying to do. For example, you
>> can write something vaguely like
>>
>> data Nat = Z | S Nat
>> data SL (n :: Nat) a where
>>   Nil :: SL Z
>>   Cons :: a -> SL n a -> SL (S n) a
>>
>> plot :: forall (n::Nat) . (SL n Double -> Double) ->
>>                                         SL n (Double, Double) -> IO ()
>> On Mar 11, 2015 5:45 PM, "Sumit Sahrawat, Maths & Computing, IIT (BHU)" <
>> sumit.sahrawat.apm13 at iitbhu.ac.in> wrote:
>>
>>> Hi everybody,
>>>
>>> I have a function of type
>>>
>>>     plot :: ([Double] -> Double)    -- A function to plot
>>>          -> [(Double, Double)]      -- Range for all arguments
>>>          -> IO ()
>>>
>>> I want to enforce the fact that ranges for all arguments should be
>>> provided.
>>> Is there a way to make the type system enforce it?
>>>
>>> --
>>> Regards
>>>
>>> Sumit Sahrawat
>>>
>>> _______________________________________________
>>> Haskell-Cafe mailing list
>>> Haskell-Cafe at haskell.org
>>> http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe
>>>
>>>
>
>
> --
> Regards
>
> Sumit Sahrawat
>
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