list of lists



Yes, I understand that that's the mechanism you're using, which is fine, but
what is your overall goal?

              -s

On Mon, Jun 1, 2009 at 5:37 PM, Adam Majewski <adammaj1 at o2.pl> wrote:

> Stavros Macrakis pisze:
> > Yes, but you must have some way of generating the sublists and lists.
> > What is that way?
>
> I do it ( or try to do) in this way :
> 1. make a empty list
>     a:[];
> 2. add empty sublist to list
>     a:cons([],a);
>
> Adam
>
>
> >
> > On Mon, Jun 1, 2009 at 4:18 PM, Adam Majewski <adammaj1 at o2.pl> wrote:
> >
> >
> >     Thx for answer.
> >      > Depends where the elements are coming from.  If you know what
> >     they are
> >      > in advance...
> >     I do not know how many sublists it will be
> >     and I don't know the elements of sublists.
> >
> >     Adam
> >
> >      >
> >      >    a: [ [c] , [d] ] $
> >      >
> >      > Or you can do things like
> >      >
> >      >     makelist( makelist(i,i,1,n), n, 1, 4)
> >      >            =>  [[1], [1, 2], [1, 2, 3], [1, 2, 3, 4]]
> >      >
> >      > On Mon, Jun 1, 2009 at 3:49 PM, Adam Majewski <adammaj1 at o2.pl>
> wrote:
> >      >
> >      >     Hi,
> >      >
> >      >     I wanted to make array of list, but I failed to do it
> >      >     so I've tried to make list of lists ( if it is possible).
> >      >
> >      >     Here is what I have done :
> >      >     1. make a empty list
> >      >     a:[];
> >      >     2. add elements to list ( another empty list)
> >      >     a:cons([],a);
> >      >     a:cons([],a);
> >      >     3. add elements to sublists
> >      >     a[1]:cons(c,a[1]);
> >      >     a[2]:cons(d,a[2]);
> >      >     4. check
> >      >     a[1][1];
> >      >
> >      >     Is it a good/best way ?
> >      >
> >      >     Adam
> >      >
> >      >
> >      >     ============== code ====================
> >      >     a:[];
> >      >     a:cons([],a);
> >      >     a:cons([],a);
> >      >     a[1]:cons(c,a[1]);
> >      >     a[2]:cons(d,a[2]);
> >      >     a[1][1];
> >      >     ==============================================
> >      >
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