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Re: [Chicken-hackers] CR: expt should signal error on domain error
From: |
Peter Bex |
Subject: |
Re: [Chicken-hackers] CR: expt should signal error on domain error |
Date: |
Mon, 4 Jul 2011 10:48:31 +0200 |
User-agent: |
Mutt/1.4.2.3i |
On Mon, Jul 04, 2011 at 10:41:22AM +0200, Felix wrote:
> > +1 on that. Having the fp (or fx, for that matter) procedures behave
> > differently from the "generic" ones on flonums is unintuitive and seems
> > to me like trouble in the making.
>
> Is this intuition, or are you simply being used to it? I learned in
> School that division by zero is invalid. Nobody told me about nonsense
> like positive or negative zero, or numbers that aren't. That is
> unintuitive.
In this particular case I don't care one iota about what's intuitive or
not with regards to how floating point numbers behave, nor what I'm
used to.
What I care about is internal consistency. Having fp+ behave differently
from + is unintuitive. If you want to fix it to be more intuitive, please
do, but then please, please please fix it in *both* the + and fp+ procedures.
> Unfortunately we take conventions born out of technical
> peculiarities or peformance hacks for granted.
>
> This deeply disappoints me. You all are a bunch of robots.
A very smart man I deeply respect once said: "It is not necessary to say that"
Cheers,
Peter
--
http://sjamaan.ath.cx
--
"The process of preparing programs for a digital computer
is especially attractive, not only because it can be economically
and scientifically rewarding, but also because it can be an aesthetic
experience much like composing poetry or music."
-- Donald Knuth
- Re: [Chicken-hackers] CR: expt should signal error on domain error, Felix, 2011/07/02
- Re: [Chicken-hackers] CR: expt should signal error on domain error, Moritz Heidkamp, 2011/07/04
- Re: [Chicken-hackers] CR: expt should signal error on domain error, Peter Bex, 2011/07/04
- Re: [Chicken-hackers] CR: expt should signal error on domain error, John Cowan, 2011/07/04
- Re: [Chicken-hackers] CR: expt should signal error on domain error, Aleksej Saushev, 2011/07/13