[FRIAM] square land math question

[Frank Wimberly]

OK.  As long as you grok the difference between the mathematical concept
and the OO concept.

---
Frank C. Wimberly
140 Calle Ojo Feliz,
Santa Fe, NM 87505

505 670-9918
Santa Fe, NM

On Thu, Jul 23, 2020, 3:41 PM uǝlƃ ↙↙↙ <gepropella at gmail.com> wrote:

> We used to have this argument all the time about the apt use of relational
> vs. OO databases. As in Ed's conception, the same square can be associated
> with multiple locations. Then to update all the renderings of that 1
> square, say, change its color from red to blue, all you need do is change
> the object and all its renderings change as a result. That's pretty handy.
>
> But what if you really did want multiple squares so that changing the
> color of this square over here didn't change the color of that square over
> there? You might want "square" to be a class but have color be an instance
> property so you could change each square to a different color. Or you might
> even have a concept of *scope* so that all  the squares in a neighborhood
> changed, but no those far away ... or only the squares that are also
> rotated 90° (invisibly) would change color, but those that haven't been
> rotated stay whatever color they are.
>
> To my mind, computationalists tend to think like the latter (collections
> of instances) whereas analysts tend to think like the former ("normalized"
> or "unified"). I'm agnostic and like both teams. But when I see one team
> winning, I tend to traitoriously jump from one side to the other.
>
> On 7/23/20 2:26 PM, Frank Wimberly wrote:
> > What?
> >
> > On Thu, Jul 23, 2020, 2:56 PM uǝlƃ ↙↙↙ <gepropella at gmail.com <mailto:
> gepropella at gmail.com>> wrote:
> >
> >     Ha! No way. If that were true, then to mow my lawn, I'd only have to
> mow the little part in the corner and voilá all the other patches would
> also be mowed.
> >
> >     On 7/23/20 1:52 PM, Frank Wimberly wrote:
> >     > "is the same sized square, e.g. at {0.5,0.5}, the same square as
> the one at {10.5-10,10.5-10}"
> >     >
> >     > If you agree that 10.5 - 10 = 0.5 then same square, different name.
>
> --
> ↙↙↙ uǝlƃ
>
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