Re: Temporal database - no end date
From: Marshall <marshall.spight_at_gmail.com>
Date: 23 Jan 2007 21:14:56 -0800
Message-ID: <1169615696.821468.71300_at_v45g2000cwv.googlegroups.com>
> I agree with Tegiri that int is much more satisfactory model of
> integers, compared to float model of the real numbers.
Date: 23 Jan 2007 21:14:56 -0800
Message-ID: <1169615696.821468.71300_at_v45g2000cwv.googlegroups.com>
On Jan 23, 6:35 pm, "Aloha Kakuikanu" <aloha.kakuik..._at_yahoo.com> wrote:
>
> I agree with Tegiri that int is much more satisfactory model of
> integers, compared to float model of the real numbers.
In fact, if I understand correctly, the construct of fixed-sized integers is a fine example of a commutative ring. Not an abstraction or approximation of a ring, but an actual ring.
> It is a common
> knowledge that the only field where floats are useful is computer
> graphics.
Well, I regularly hear of floating point being used in various simulations and other hard-science applications, but I lack any direct knowledge of this.
Marshall Received on Wed Jan 24 2007 - 06:14:56 CET