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Today's Topics:
1. Re: randmomR produces only even values (Henk-Jan van Tuyl)
2. Getting Started (Abhishek Kumar)
3. Re: randmomR produces only even values (Chadda? Fouch?)
4. Re: Getting Started (Magnus Therning)
5. Re: Getting Started (Abhishek Kumar)
6. Re: Getting Started (Magnus Therning)
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Message: 1
Date: Sun, 01 Nov 2015 16:12:46 +0100
From: "Henk-Jan van Tuyl" <hjgt...@chello.nl>
To: "The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell" <beginners@haskell.org>,
"Andrew Bernard" <andrew.bern...@gmail.com>
Subject: Re: [Haskell-beginners] randmomR produces only even values
Message-ID: <op.x7fgjoh0pz0j5l@alquantor>
Content-Type: text/plain; charset=iso-8859-15; format=flowed;
delsp=yes
On Sun, 01 Nov 2015 03:24:07 +0100, Andrew Bernard
<andrew.bern...@gmail.com> wrote:
> According to the package documentation for System.Random:
>
> This implementation uses the Portable Combined Generator of L'Ecuyer
> [System.Random] for 32-bit computers, transliterated by Lennart
> Augustsson.
>
> The paper in question is given as:
>
> Pierre L'Ecuyer, /Efficient and portable combined random number
> generators/, Comm ACM, 31(6), Jun 1988, pp742-749
>
> Does anybody have a copy of this paper?
The first result of a search with startpage was:
http://www.iro.umontreal.ca/~lecuyer/myftp/papers/cacm88.pdf
Regards,
Henk-Jan van Tuyl
--
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Haskell programming
--
------------------------------
Message: 2
Date: Sun, 1 Nov 2015 23:20:15 +0530
From: Abhishek Kumar <abhishekkm...@gmail.com>
To: beginners@haskell.org
Subject: [Haskell-beginners] Getting Started
Message-ID:
<CAEAgXqWg5vxaM6GUO1UqtZkR=5b63th5fmnabwg6aqgkco1...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hello Everyone
I am new to haskell (learning right now). I want to contribute to data
structure and algorithm libraries in haskell.Please guide me with
appropriate links and how to start with.I have previous implementation
experience in other languages.
Thanks
Abhishek Kumar
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Message: 3
Date: Sun, 01 Nov 2015 21:42:12 +0000
From: Chadda? Fouch? <chaddai.fou...@gmail.com>
To: The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell <beginners@haskell.org>
Subject: Re: [Haskell-beginners] randmomR produces only even values
Message-ID:
<CANfjZRadL8tfRx15q+QDDo0jwV=51o2Pzgvd8AzD-5m=3id...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
I really don't think this is much of a flaw. It may need to be reinforced
that this package (and most random libraries) doesn't provide _any_
guarantee if you use it like that (restrain the first output with randomR
of lots of random generators initialized by very particular seeds sequence).
The guarantee the paper will be talking about will be for a sequence of
random numbers generated by one generator and this behave normally as shown
by :
> (minimum &&& maximum) . map (length . filter even . take 1000 . randomRs
(1,10) . mkStdGen) $ [1..1000]
(432,553)
In other words, if there's any problem it is only one of documentation
(just a warning in the haddock ought to be sufficient).
--
Jeda?
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Message: 4
Date: Mon, 2 Nov 2015 08:39:18 +0100
From: Magnus Therning <mag...@therning.org>
To: The Haskell-Beginners Mailing List <beginners@haskell.org>
Subject: Re: [Haskell-beginners] Getting Started
Message-ID: <20151102073918.ga10...@sobel.cipherstone.com>
Content-Type: text/plain; charset="us-ascii"
On Sun, Nov 01, 2015 at 11:20:15PM +0530, Abhishek Kumar wrote:
> Hello Everyone
>
> I am new to haskell (learning right now). I want to contribute to data
> structure and algorithm libraries in haskell.Please guide me with
> appropriate links and how to start with.I have previous implementation
> experience in other languages.
Once you've gotten into the language I suggest you explore [Hackage][1]
and look for something that tickles your fancy when it comes to
contributing.
/M
[1]: http://hackage.haskell.org/
--
Magnus Therning OpenPGP: 0xAB4DFBA4
email: mag...@therning.org jabber: mag...@therning.org
twitter: magthe http://therning.org/magnus
Increasingly, people seem to misinterpret complexity as sophistication,
which is baffling--the incomprehensible should cause suspicion rather than
admiration.
-- Niklaus Wirth
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Message: 5
Date: Mon, 2 Nov 2015 13:33:18 +0530
From: Abhishek Kumar <abhishekkm...@gmail.com>
To: The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell <beginners@haskell.org>
Subject: Re: [Haskell-beginners] Getting Started
Message-ID:
<caeagxqu7+7tvonqwnwgdpe4khk1dpmbswp0ptzel0r1r+h6...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Thanks Magnus Therning
I came across following libraries
http://hackage.haskell.org/package/graphs graphs
and http://hackage.haskell.org/package/bytestring-trie
and few others.
I am not sure whether these libraries are under active development and I
can find some beginner level bugs there to start with.Can someone please
suggest me some libraries having open beginner issues.
Thanks
Abhishek Kumar
On Mon, Nov 2, 2015 at 1:09 PM, Magnus Therning <mag...@therning.org> wrote:
> On Sun, Nov 01, 2015 at 11:20:15PM +0530, Abhishek Kumar wrote:
> > Hello Everyone
> >
> > I am new to haskell (learning right now). I want to contribute to data
> > structure and algorithm libraries in haskell.Please guide me with
> > appropriate links and how to start with.I have previous implementation
> > experience in other languages.
>
> Once you've gotten into the language I suggest you explore [Hackage][1]
> and look for something that tickles your fancy when it comes to
> contributing.
>
> /M
>
> [1]: http://hackage.haskell.org/
>
> --
> Magnus Therning OpenPGP: 0xAB4DFBA4
> email: mag...@therning.org jabber: mag...@therning.org
> twitter: magthe http://therning.org/magnus
>
> Increasingly, people seem to misinterpret complexity as sophistication,
> which is baffling--the incomprehensible should cause suspicion rather than
> admiration.
> -- Niklaus Wirth
>
> _______________________________________________
> Beginners mailing list
> Beginners@haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>
>
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Message: 6
Date: Mon, 2 Nov 2015 09:11:19 +0100
From: Magnus Therning <mag...@therning.org>
To: beginners@haskell.org
Subject: Re: [Haskell-beginners] Getting Started
Message-ID: <20151102081119.gc10...@sobel.cipherstone.com>
Content-Type: text/plain; charset="us-ascii"
On Mon, Nov 02, 2015 at 01:33:18PM +0530, Abhishek Kumar wrote:
> Thanks Magnus Therning
>
> I came across following libraries
> http://hackage.haskell.org/package/graphs graphs and
> http://hackage.haskell.org/package/bytestring-trie and few others.
Oh, there are so many more on there :)
> I am not sure whether these libraries are under active development and
> I can find some beginner level bugs there to start with.Can someone
> please suggest me some libraries having open beginner issues.
That sort of thing you're only likely to find on the individual
libraries' home pages. So you have to start following links from
Hackage to their homes. I suspect only larger projects might maintain a
list of beginner-friendly bugs. I do believe the compiler itself, ghc,
tries to mark some bugs as easy-to-fix.
/M
--
Magnus Therning OpenPGP: 0xAB4DFBA4
email: mag...@therning.org jabber: mag...@therning.org
twitter: magthe http://therning.org/magnus
The cheapest, fastest and most reliable components of a computer system
are those that aren't there.
-- Gordon Bell
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