[squeakland] Etoys - arrays/lists?
rdlatimer at gmail.com
Wed Oct 12 07:23:36 EDT 2011
I'll try Yoshiki's particle version. For instance, in a simple coin toss
program, it may be good to store percentages of heads/tails for numerous
trials, like flipping a coin 10 times, get the percentage of heads, and run
this trial 1000 times.
Or pick 50 random numbers from 1-500 and see how many match, are do they
tend to be all unique.
Or in a projectile program, it may be good to store x,y positions in two
arrays/lists, one for x positions, one for y positions.
On Wed, Oct 12, 2011 at 4:12 AM, David Corking <lists at dcorking.com> wrote:
> > R.D. Latimer wrote:
> >> Is there a way to create an array or list of numbers - many numbers,
> like 100 or 1000 or more?
> >> From the Illinois website it looks as though a Holder is the only way to
> do this, copy in a Text object for each array/list element.
> >> This method doesn't seem to be the way to store large numbers of values
> into an array or list.
> Yoshiki wrote:
> > "Doesn't seem to be"... But can you elaborate a little bit more?
> > It may be actually feasible with Text object. But, yes, such kind of
> > large collection is not a common Etoys feature.
> I once created a grid of the first 100 natural numbers: it wasn't
> pretty to create and took a few minutes of copy and paste. I ended up
> with a holder of holders (each containing a row of 10 Text objects.)
> So it can be done but I think Yoshiki's suggestions of particles or
> textual script would be better.
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