list of lists



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];
>      >     ==============================================
>      >
>      >     _______________________________________________
>      >     Maxima mailing list
>      >     Maxima at math.utexas.edu <mailto:Maxima at math.utexas.edu>
>     <mailto:Maxima at math.utexas.edu <mailto:Maxima at math.utexas.edu>>
>      >     http://www.math.utexas.edu/mailman/listinfo/maxima
>      >
>      >
>      >
>      >
>     ------------------------------------------------------------------------
>      >
>      > _______________________________________________
>      > Maxima mailing list
>      > Maxima at math.utexas.edu <mailto:Maxima at math.utexas.edu>
>      > http://www.math.utexas.edu/mailman/listinfo/maxima
> 
>     _______________________________________________
>     Maxima mailing list
>     Maxima at math.utexas.edu <mailto:Maxima at math.utexas.edu>
>     http://www.math.utexas.edu/mailman/listinfo/maxima
> 
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Maxima mailing list
> Maxima at math.utexas.edu
> http://www.math.utexas.edu/mailman/listinfo/maxima