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Today's Topics:
1. Haskell Package for Mac issues (Andrew n marshall)
2. Re: Looking for some pro bono haskell work (Patrick Lynch)
3. Re: Looking for some pro bono haskell work (Ertugrul Soeylemez)
4. Re: Average of numeric list (Tom Murphy)
5. Re: Looking for some pro bono haskell work (aditya siram)
6. Re: Looking for some pro bono haskell work (Ramy Abdel-Azim)
----------------------------------------------------------------------
Message: 1
Date: Tue, 05 Apr 2011 08:46:49 -0700
From: Andrew n marshall <andrew.n.marsh...@gmail.com>
Subject: [Haskell-beginners] Haskell Package for Mac issues
To: Beginners@haskell.org
Message-ID: <4d9b3969.4050...@gmail.com>
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Message: 2
Date: Tue, 05 Apr 2011 12:12:55 -0400
From: "Patrick Lynch" <kmandpjly...@verizon.net>
Subject: Re: [Haskell-beginners] Looking for some pro bono haskell
work
To: "Bryce Verdier" <bryceverd...@gmail.com>, <beginners@haskell.org>
Message-ID: <288CFC6B4475402194DF37EBC8240708@UserPC>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=response
Good morning,
Thanks for the advice, I have contacted Yesod...
I'm in the process of installing it but am running into a Cabal problem...it
seems to be looking for Perl...
I have Perl on my pc but I don't know how to inform Cabal of where it is
located...
I'm going to take a look at the Cabal User Guide...
I'll let you know how I make out...
Good day
----- Original Message -----
From: "Bryce Verdier" <bryceverd...@gmail.com>
To: <beginners@haskell.org>
Sent: Tuesday, April 05, 2011 11:45 AM
Subject: Re: [Haskell-beginners] Looking for some pro bono haskell work
> Patrick,
>
> Since you are interested in helping a haskell based web front-end project,
> have you thought about contacting the Yesod project?
>
> Bryce
>
>
> On 04/05/2011 07:04 AM, Patrick Lynch wrote:
>> ...one more project...
>>
>> I tried to understand Category Theory but was unable to do so...
>> I tried reading three books in regard to it and can understand the
>> definition of Category...but couldn't follow any of these books past the
>> first chapter and was unable to do any of the exercises in them...
>> However, I did see a few links that 'graphically' showed a Category and
>> another that showed some categories and how they were implemented in
>> Haskell - these made the most sense to me...
>> Since categories are the basis for Functors, Monoids and Monads - which
>> are extensively used in Haskell and implicitly used, I think, in Linq - I
>> would be very willing to participate in a project that showed categories
>> and how they are implemented in Haskell...
>>
>> Just a thought...
>>
>> Ps
>> I am an independent software consultant [been doing it for 30+ years].
>> I did a market evaluation of Haskell and Linq and found the following:
>> - there are page after page of Ling/C# jobs...
>> - I only saw 1 Haskell job...
>> It 'begs the question': is some commercial organization going to
>> implement Haskell as a product [I don't think it will be Microsoft, since
>> they have introduced F#]...
>>
>> ----- Original Message ----- From: "Patrick Lynch"
>> <kmandpjly...@verizon.net>
>> To: "aditya siram" <aditya.si...@gmail.com>
>> Cc: <beginners@haskell.org>
>> Sent: Tuesday, April 05, 2011 9:45 AM
>> Subject: Re: [Haskell-beginners] Looking for some pro bono haskell work
>>
>>
>>> Good morning,
>>> Thanks for the advice.
>>> I sent an email to Zvon and volunteered to help them with the examples
>>> of Haskell functions in their "Haskell Reference Page"
>>> The projects that I envisage are:
>>> - I tried to get TK installed but was unable to do so, if someone is
>>> working this install, I would be willing to test it for them...
>>> - If anyone is working on a web front-end to Haskell, I would be
>>> willing to participate...
>>> Good day
>>>
>>> ----- Original Message ----- From: "aditya siram"
>>> <aditya.si...@gmail.com>
>>> To: "Patrick Lynch" <kmandpjly...@verizon.net>
>>> Cc: <beginners@haskell.org>
>>> Sent: Monday, April 04, 2011 5:19 PM
>>> Subject: Re: [Haskell-beginners] Looking for some pro bono haskell work
>>>
>>>
>>>> I would pick a project and contribute a patch to it, or start one of
>>>> your own.
>>>> -deech
>>>>
>>>> On Mon, Apr 4, 2011 at 4:17 PM, Patrick Lynch
>>>> <kmandpjly...@verizon.net> wrote:
>>>>> Good afternoon,
>>>>> I've read all the books and am looking for some pro bono Haskell
>>>>> Development
>>>>> work...
>>>>> If you have some, please email me...
>>>>> Thanks
>>>>> _______________________________________________
>>>>> Beginners mailing list
>>>>> Beginners@haskell.org
>>>>> http://www.haskell.org/mailman/listinfo/beginners
>>>>>
>>>>>
>>>>
>>>
>>>
>>> _______________________________________________
>>> Beginners mailing list
>>> Beginners@haskell.org
>>> http://www.haskell.org/mailman/listinfo/beginners
>>>
>>
>>
>> _______________________________________________
>> Beginners mailing list
>> Beginners@haskell.org
>> http://www.haskell.org/mailman/listinfo/beginners
>
>
> _______________________________________________
> Beginners mailing list
> Beginners@haskell.org
> http://www.haskell.org/mailman/listinfo/beginners
>
------------------------------
Message: 3
Date: Tue, 5 Apr 2011 18:20:39 +0200
From: Ertugrul Soeylemez <e...@ertes.de>
Subject: Re: [Haskell-beginners] Looking for some pro bono haskell
work
To: beginners@haskell.org
Message-ID: <20110405182039.67284...@angst.streitmacht.eu>
Content-Type: text/plain; charset=US-ASCII
"Patrick Lynch" <kmandpjly...@verizon.net> wrote:
> ...one more project...
>
> I tried to understand Category Theory but was unable to do so... I
> tried reading three books in regard to it and can understand the
> definition of Category...but couldn't follow any of these books past
> the first chapter and was unable to do any of the exercises in them...
> However, I did see a few links that 'graphically' showed a Category
> and another that showed some categories and how they were implemented
> in Haskell - these made the most sense to me...
> Since categories are the basis for Functors, Monoids and Monads -
> which are extensively used in Haskell and implicitly used, I think, in
> Linq - I would be very willing to participate in a project that showed
> categories and how they are implemented in Haskell...
I'd like to add that while category theory is the foundation of a lot of
concepts in Haskell, it is not strictly necessary to understand any CT
to follow them. I, for example, write many real world applications in
Haskell while understanding, just like you, what a category is.
It is not necessary to understand on a categorical level what functors
or monads are. You just need to be able to make intuitive sense of the
definitions and laws. CT gives you some terminology and some connecting
lines between those, but it will not make you a better Haskell
programmer per se.
However, one shortcoming of the current base library is that some of the
expressable connections between categorical concepts are not expressed.
For example, Monad is not a subclass of Functor, even though every monad
is a functor categorically and given a monad instance it is trivial to
write a valid functor instance. This is unfortunate, but doesn't change
my point.
> I am an independent software consultant [been doing it for 30+ years].
> I did a market evaluation of Haskell and Linq and found the following:
> - there are page after page of Ling/C# jobs...
> - I only saw 1 Haskell job...
> It 'begs the question': is some commercial organization going to
> implement Haskell as a product [I don't think it will be Microsoft,
> since they have introduced F#]...
While there are only few companies hiring Haskell programmers (most of
them work in the financial sector), you can very well use Haskell to
increase your own productivity.
Greets,
Ertugrul
--
nightmare = unsafePerformIO (getWrongWife >>= sex)
http://ertes.de/
------------------------------
Message: 4
Date: Tue, 5 Apr 2011 12:30:35 -0400
From: Tom Murphy <amin...@gmail.com>
Subject: Re: [Haskell-beginners] Average of numeric list
To: Daniel Fischer <daniel.is.fisc...@googlemail.com>
Cc: beginners@haskell.org
Message-ID: <BANLkTi=zkx062vp7wk4fkdbolftvu+8...@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
>
> > I've always wondered, is it imaginable that a compiler would be able to
> > do such transforms (assuming very intelligent people (i.e. not me)
> > have plenty of time to work on it), or is it way too complicated ?
>
...
> Spotting more patterns would require more code in the compiler, and it
> would increase compile times.
>
> So one has to decide whether the cost is worth the benefit.
> Apparently, so far it has not been considered worthwhile.
It seems to me that, in almost every case, the cost of performance slow-down
is greater than the cost of compilation slow-down.
Tom
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Message: 5
Date: Tue, 5 Apr 2011 11:34:20 -0500
From: aditya siram <aditya.si...@gmail.com>
Subject: Re: [Haskell-beginners] Looking for some pro bono haskell
work
To: Patrick Lynch <kmandpjly...@verizon.net>
Cc: beginners@haskell.org
Message-ID: <banlktimwujrjpr4pjgyzziz+u1g4hko...@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
I'm no Haskell guru, but I don't know any category theory and it
hasn't been a major stumbling block for me. I think you get a long
ways with Haskell before you need to go there.
-deech
On Tue, Apr 5, 2011 at 9:04 AM, Patrick Lynch <kmandpjly...@verizon.net> wrote:
> ...one more project...
>
> I tried to understand Category Theory but was unable to do so...
> I tried reading three books in regard to it and can understand the
> definition of Category...but couldn't follow any of these books past the
> first chapter and was unable to do any of the exercises in them...
> However, I did see a few links that 'graphically' showed a Category and
> another that showed some categories and how they were implemented in Haskell
> - these made the most sense to me...
> Since categories are the basis for Functors, Monoids and Monads - which are
> extensively used in Haskell and implicitly used, I think, in Linq - I would
> be very willing to participate in a project that showed categories and how
> they are implemented in Haskell...
>
> Just a thought...
>
> Ps
> I am an independent software consultant [been doing it for 30+ years].
> I did a market evaluation of Haskell and Linq and found the following:
> ?- there are page after page of Ling/C# jobs...
> ?- I only saw 1 Haskell job...
> It 'begs the question': is some commercial organization going to implement
> Haskell as a product [I don't think it will be Microsoft, since they have
> introduced F#]...
>
> ----- Original Message ----- From: "Patrick Lynch"
> <kmandpjly...@verizon.net>
> To: "aditya siram" <aditya.si...@gmail.com>
> Cc: <beginners@haskell.org>
> Sent: Tuesday, April 05, 2011 9:45 AM
> Subject: Re: [Haskell-beginners] Looking for some pro bono haskell work
>
>
>> Good morning,
>> Thanks for the advice.
>> I sent an email to Zvon and volunteered to help them with the examples of
>> Haskell functions in their "Haskell Reference Page"
>> The projects that I envisage are:
>> ? ?- I tried to get TK installed but was unable to do so, if someone is
>> working this install, I would be willing to test it for them...
>> ? ?- If anyone is working on a web front-end to Haskell, I would be
>> willing to participate...
>> Good day
>>
>> ----- Original Message ----- From: "aditya siram" <aditya.si...@gmail.com>
>> To: "Patrick Lynch" <kmandpjly...@verizon.net>
>> Cc: <beginners@haskell.org>
>> Sent: Monday, April 04, 2011 5:19 PM
>> Subject: Re: [Haskell-beginners] Looking for some pro bono haskell work
>>
>>
>>> I would pick a project and contribute a patch to it, or start one of your
>>> own.
>>> -deech
>>>
>>> On Mon, Apr 4, 2011 at 4:17 PM, Patrick Lynch <kmandpjly...@verizon.net>
>>> wrote:
>>>>
>>>> Good afternoon,
>>>> I've read all the books and am looking for some pro bono Haskell
>>>> Development
>>>> work...
>>>> If you have some, please email me...
>>>> Thanks
>>>> _______________________________________________
>>>> Beginners mailing list
>>>> Beginners@haskell.org
>>>> http://www.haskell.org/mailman/listinfo/beginners
>>>>
>>>>
>>>
>>
>>
>> _______________________________________________
>> Beginners mailing list
>> Beginners@haskell.org
>> http://www.haskell.org/mailman/listinfo/beginners
>>
>
>
------------------------------
Message: 6
Date: Tue, 5 Apr 2011 12:40:42 -0400
From: Ramy Abdel-Azim <ramy.abdela...@gmail.com>
Subject: Re: [Haskell-beginners] Looking for some pro bono haskell
work
To: aditya siram <aditya.si...@gmail.com>
Cc: beginners@haskell.org
Message-ID: <BANLkTi=5phtpakdqarp9tovd2ope+de...@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Maybe i should start a new thread here ( i certainly don't want to derail
the conversation too much) but could someone explain the differences between
happstack and yesod? Also, i've been thinking of getting my hands dirtier
with haskell and trying to possibly create a webiste in Haskell. What are
the strengths and weaknesses of each?
Thanks,
_Ramy
On Tue, Apr 5, 2011 at 12:34 PM, aditya siram <aditya.si...@gmail.com>wrote:
> I'm no Haskell guru, but I don't know any category theory and it
> hasn't been a major stumbling block for me. I think you get a long
> ways with Haskell before you need to go there.
> -deech
>
> On Tue, Apr 5, 2011 at 9:04 AM, Patrick Lynch <kmandpjly...@verizon.net>
> wrote:
> > ...one more project...
> >
> > I tried to understand Category Theory but was unable to do so...
> > I tried reading three books in regard to it and can understand the
> > definition of Category...but couldn't follow any of these books past the
> > first chapter and was unable to do any of the exercises in them...
> > However, I did see a few links that 'graphically' showed a Category and
> > another that showed some categories and how they were implemented in
> Haskell
> > - these made the most sense to me...
> > Since categories are the basis for Functors, Monoids and Monads - which
> are
> > extensively used in Haskell and implicitly used, I think, in Linq - I
> would
> > be very willing to participate in a project that showed categories and
> how
> > they are implemented in Haskell...
> >
> > Just a thought...
> >
> > Ps
> > I am an independent software consultant [been doing it for 30+ years].
> > I did a market evaluation of Haskell and Linq and found the following:
> > - there are page after page of Ling/C# jobs...
> > - I only saw 1 Haskell job...
> > It 'begs the question': is some commercial organization going to
> implement
> > Haskell as a product [I don't think it will be Microsoft, since they have
> > introduced F#]...
> >
> > ----- Original Message ----- From: "Patrick Lynch"
> > <kmandpjly...@verizon.net>
> > To: "aditya siram" <aditya.si...@gmail.com>
> > Cc: <beginners@haskell.org>
> > Sent: Tuesday, April 05, 2011 9:45 AM
> > Subject: Re: [Haskell-beginners] Looking for some pro bono haskell work
> >
> >
> >> Good morning,
> >> Thanks for the advice.
> >> I sent an email to Zvon and volunteered to help them with the examples
> of
> >> Haskell functions in their "Haskell Reference Page"
> >> The projects that I envisage are:
> >> - I tried to get TK installed but was unable to do so, if someone is
> >> working this install, I would be willing to test it for them...
> >> - If anyone is working on a web front-end to Haskell, I would be
> >> willing to participate...
> >> Good day
> >>
> >> ----- Original Message ----- From: "aditya siram" <
> aditya.si...@gmail.com>
> >> To: "Patrick Lynch" <kmandpjly...@verizon.net>
> >> Cc: <beginners@haskell.org>
> >> Sent: Monday, April 04, 2011 5:19 PM
> >> Subject: Re: [Haskell-beginners] Looking for some pro bono haskell work
> >>
> >>
> >>> I would pick a project and contribute a patch to it, or start one of
> your
> >>> own.
> >>> -deech
> >>>
> >>> On Mon, Apr 4, 2011 at 4:17 PM, Patrick Lynch <
> kmandpjly...@verizon.net>
> >>> wrote:
> >>>>
> >>>> Good afternoon,
> >>>> I've read all the books and am looking for some pro bono Haskell
> >>>> Development
> >>>> work...
> >>>> If you have some, please email me...
> >>>> Thanks
> >>>> _______________________________________________
> >>>> Beginners mailing list
> >>>> Beginners@haskell.org
> >>>> http://www.haskell.org/mailman/listinfo/beginners
> >>>>
> >>>>
> >>>
> >>
> >>
> >> _______________________________________________
> >> Beginners mailing list
> >> Beginners@haskell.org
> >> http://www.haskell.org/mailman/listinfo/beginners
> >>
> >
> >
>
> _______________________________________________
> Beginners mailing list
> Beginners@haskell.org
> http://www.haskell.org/mailman/listinfo/beginners
>
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