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 ↙↙↙ <[email protected]> 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 ↙↙↙ <[email protected] <mailto: > [email protected]>> 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 > > - .... . -..-. . -. -.. -..-. .. ... -..-. .... . .-. . > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam > un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC <http://friam.471366.n2.nabble.com/FRIAM-COMIC> > http://friam-comic.blogspot.com/ >
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