From: Ada novice <shai.lesh@gmx.com>
Subject: Re: Numerical calculations: Why not use fixed point types for everything?
Date: Thu, 7 Feb 2013 22:20:12 -0800 (PST)
Date: 2013-02-07T22:20:12-08:00 [thread overview]
Message-ID: <c9fe8c80-1bc5-499e-9691-a0b223cd9f7b@googlegroups.com> (raw)
In-Reply-To: <kevg3p$jnn$1@munin.nbi.dk>
On Thursday, February 7, 2013 7:03:33 AM UTC+1, Randy Brukardt wrote:
>
>
> My point was that most loops can be refactored this way unless there is some
>
> varying data in them. (And the best loop execution-wise is no loop.) And
>
> indeed, most of the loops like this that I've written involve processing
>
> (summarizing, often) an array of data. In which case you need an array
>
> index; and usually you can convert that index into the factor by some
>
> technique. So iteration by fixed point values or the like makes for
>
> interesting examples, but won't happen that often in practice.
>
>
>
> Randy.
Thanks for your interesting message. I agree with you that one needs to simplify the code as far as possible. In most situations where I use loops, it is because at each index, I am computing some new variables that need to be stored (for example in a time integration routine). In this case, I can't get rid of the loop construct because of the "varying data".
prev parent reply other threads:[~2013-02-08 6:20 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-17 10:33 Numerical calculations: Why not use fixed point types for everything? Ada novice
2013-01-17 14:40 ` Nasser M. Abbasi
2013-01-17 16:16 ` Adam Beneschan
2013-01-17 17:00 ` Georg Bauhaus
2013-01-17 16:25 ` Adam Beneschan
2013-01-18 9:17 ` Ada novice
2013-01-18 17:24 ` J-P. Rosen
2013-01-18 17:52 ` Jeffrey Carter
2013-01-18 18:15 ` Dennis Lee Bieber
2013-01-18 18:59 ` Adam Beneschan
2013-01-19 4:41 ` Dennis Lee Bieber
2013-01-19 6:26 ` Jeffrey Carter
2013-01-19 14:14 ` Robert A Duff
2013-01-25 12:16 ` Paul Colin Gloster
2013-01-24 10:55 ` Ada novice
2013-01-24 11:47 ` Simon Wright
2013-01-24 14:21 ` Ada novice
2013-01-20 0:05 ` Robin Vowels
2013-01-18 23:06 ` Robin Vowels
2013-01-18 19:09 ` Adam Beneschan
2013-01-18 21:39 ` Randy Brukardt
2013-01-19 7:02 ` Ada novice
2013-01-25 12:09 ` Paul Colin Gloster
2013-01-25 12:23 ` Paul Colin Gloster
2013-01-28 9:09 ` Ada novice
2013-02-01 10:53 ` Ada novice
2013-02-01 15:01 ` Shark8
2013-02-02 18:55 ` Ada novice
2013-02-03 4:05 ` Shark8
2013-02-04 6:23 ` Ada novice
2013-02-04 6:43 ` Niklas Holsti
2013-02-04 7:27 ` Ada novice
2013-02-04 9:37 ` Niklas Holsti
2013-02-04 10:09 ` Ada novice
2013-02-04 14:24 ` Niklas Holsti
2013-02-04 16:44 ` Jeffrey Carter
2013-02-04 21:12 ` Niklas Holsti
2013-02-04 17:31 ` Robert A Duff
2013-02-04 21:20 ` Niklas Holsti
2013-02-02 21:08 ` Nasser M. Abbasi
2013-02-04 6:17 ` Ada novice
2013-02-05 2:27 ` Randy Brukardt
2013-02-06 7:11 ` Ada novice
2013-02-07 6:03 ` Randy Brukardt
2013-02-07 8:43 ` Shark8
2013-02-08 3:17 ` Randy Brukardt
2013-02-08 6:20 ` Ada novice [this message]
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