From: ik at sjmulder.nl (Sijmen J. Mulder)
Subject: [COFF] Fwd: Old and Tradition was [TUHS] V9 shell
Date: Mon, 24 Feb 2020 10:40:10 +0100 [thread overview]
Message-ID: <20200224104010.2d8510cfe00da71439f5d05e@sjmulder.nl> (raw)
In-Reply-To: <20200212030152.GJ852@mcvoy.com>
Larry McVoy <lm at mcvoy.com> wrote:
> Fortran programmers are formally trained (at least I
> was, there was a whole semester devoted to this) in accumulated errors.
> You did a deep dive into how to code stuff so that the error was reduced
> each time instead of increased. It has a lot to do with how floating
> point works, it's not exact like integers are.
I was unaware that there's formal training to be had around this but
it's something I'd like to learn more about. Any recommendations on
materials? I don't mind diving into Fortran itself either.
Background: I've been playing around with actuarial calculations
(pensions, life insurance, etc) which involve lots of accumulation over
time and I'm finding that, unsurprisingly, different implementations of
the same rules yield fairly different outcomes due to accumulated
errors.
Sijmen
next prev parent reply other threads:[~2020-02-24 9:40 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-11 18:41 [COFF] " clemc
[not found] ` <CAP2nic2C4-m_Epcx7rbW2ssbS850ZFiLKiL+hg1Wxbcwoaa1vQ@mail.gmail.com>
2020-02-12 0:57 ` [COFF] Fwd: " athornton
2020-02-12 1:58 ` clemc
2020-02-12 3:01 ` lm
2020-02-12 18:12 ` clemc
2020-02-12 21:55 ` cym224
2020-02-12 22:11 ` imp
2020-02-12 22:45 ` sauer
2020-02-12 23:05 ` lm
2020-02-12 23:54 ` [COFF] floating point (Re: " bakul
2020-02-12 23:56 ` bakul
2020-02-13 1:21 ` toby
2020-02-13 6:57 ` [COFF] Fwd: " peter
2020-02-16 21:47 ` wobblygong
2020-02-16 22:10 ` clemc
2020-02-16 22:45 ` krewat
2020-02-16 23:50 ` bakul
2020-02-18 0:17 ` dave
2020-02-18 12:48 ` jpl.jpl
2020-02-24 9:40 ` ik [this message]
2020-02-24 15:19 ` lm
[not found] ` <CAP2nic0fK+=eh=5MuY4BJH6zx4tCRMWcazmm1khYMzNmEdf8ug@mail.gmail.com>
2020-02-24 16:15 ` [COFF] [TUHS] Fwd: Old and Tradition was " clemc
2020-02-24 16:19 ` clemc
2020-02-24 16:27 ` [COFF] Fwd: Old and Tradition was [TUHS] " clemc
2020-02-12 16:28 jnc
2020-02-12 18:13 ` clemc
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