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Today's Topics:
1. Re: How to improve the accuracy of floating point
calculation? (John Wiegley)
2. Re: How to improve the accuracy of floating point
calculation? (Brandon Allbery)
3. Can someone help to unnest this "do" cascade (Martin Drautzburg)
4. Hackages that only depend on Haskell Platform (Darren Grant)
----------------------------------------------------------------------
Message: 1
Date: Wed, 06 Feb 2013 02:31:29 -0600
From: "John Wiegley" <jo...@fpcomplete.com>
Subject: Re: [Haskell-beginners] How to improve the accuracy of
floating point calculation?
To: beginners@haskell.org
Message-ID: <m2a9rhsv1a....@newartisans.com>
Content-Type: text/plain
>>>>> yi lu <zhiwudazhanjiang...@gmail.com> writes:
> I'll try CReal.
Also try the 'numbers' library.
--
John Wiegley
FP Complete Haskell tools, training and consulting
http://fpcomplete.com johnw on #haskell/irc.freenode.net
------------------------------
Message: 2
Date: Wed, 6 Feb 2013 09:03:48 -0500
From: Brandon Allbery <allber...@gmail.com>
Subject: Re: [Haskell-beginners] How to improve the accuracy of
floating point calculation?
To: The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell <beginners@haskell.org>
Message-ID:
<cakfcl4xvwxmqd9hvuoefj_szsqqap_shbknd-noyixb0_mr...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
On Tue, Feb 5, 2013 at 6:04 PM, yi lu <zhiwudazhanjiang...@gmail.com> wrote:
> Thanks!
> I'll try CReal.
> But can I set *significant figures **myself?*
>
You can't change ghci's output format, but you can do your own output
instead of relying on ghci's.
http://hackage.haskell.org/packages/archive/base/latest/doc/html/Text-Printf.htmlmight
be of interest, or doing it manually with scaling and Prelude.round.
--
brandon s allbery kf8nh sine nomine associates
allber...@gmail.com ballb...@sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net
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Message: 3
Date: Wed, 6 Feb 2013 22:31:05 +0100
From: Martin Drautzburg <martin.drautzb...@web.de>
Subject: [Haskell-beginners] Can someone help to unnest this "do"
cascade
To: beginners@haskell.org
Message-ID: <201302062231.05196.martin.drautzb...@web.de>
Content-Type: Text/Plain; charset="iso-8859-1"
Hello all,
here is a Code snipped from a Sound.ALSA.Sequencer example (much has been
stripped and this code does not do anything). I just don't seem to get it. Can
someone please walk me through it and possibly show ways to avoid the massive
nesting.
dtz = do
SndSeq.withDefault SndSeq.Block $ \h -> do
Client.setName (h :: SndSeq.T SndSeq.DuplexMode) "Haskell-Melody"
Port.withSimple h "out"
(Port.caps [Port.capRead, Port.capSubsRead, Port.capWrite])
(Port.types [Port.typeMidiGeneric, Port.typeApplication]) $ \p -> do
Queue.with h $ \q -> do
c <- Client.getId h
let me = Addr.Cons c p
conn <- parseDestArgs h me ["20:0"]
Queue.control h q Event.QueueStart Nothing
Queue.control h q (Event.QueueTempo (Event.Tempo 10000000))
Nothing
return ()
--
Martin
------------------------------
Message: 4
Date: Wed, 6 Feb 2013 22:37:59 -0800
From: Darren Grant <therealklu...@gmail.com>
Subject: [Haskell-beginners] Hackages that only depend on Haskell
Platform
To: Haskell Beginners <beginners@haskell.org>
Message-ID:
<ca+jd6sjaksqp0jq9nxb1jseipqhblpzyjbmupe4vdp4ehan...@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
So after encountering the dangers associated with installing many random
hackages I am on a mission to cull the herd.
So to that effect:
Is there a list of hackages available that *only* depend on the latest
Haskell Platform?
-or-
Can such a list be reasonably generated?
-or-
Will there even be anything left after the hackages are filtered?
Apologies if this is in fact already in the archives!
Cheers,
Darren
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