       Re: more elements in a list

• To: mathgroup at smc.vnet.net
• Subject: [mg32300] Re: more elements in a list
• From: "Dana" <ng_only at hotmail.com>
• Date: Sat, 12 Jan 2002 05:18:10 -0500 (EST)
• References: <a1gv6a\$n6n\$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```I am very new at this.  I could not get Juan's excellent idea to work in
Mathematica 4.
However, I got it to work with a slight change:

(* z=Letters, n=numbers *)

In:=
z={a,b,c};n={2,5,4} ;

In:=
MapThread[Table, {z, List /@ n}] // Flatten

Out=
{a,a,b,b,b,b,b,c,c,c,c}

= = = = = = =

I liked Andrzej idea also.  I noticed that if you change "List" to "Join"
then perhaps you can remove the "Flatten" command.

In:=
Inner[Table[#1, {#2}] &, z,n,Join ]

Out=
{a,a,b,b,b,b,b,c,c,c,c}

- - - - -
Dana DeLouis

--

"merkat" <cabanc at hotmail.com> wrote in message
news:a1gv6a\$n6n\$1 at smc.vnet.net...
> Hi ,
>
> How do I multiply the number of elements in a list?
> I have the lists:
> {a,b,c}  and
> {2,5,4}
>
> the result should be:
> {a,a,b,b,b,b,b,c,c,c,c}
>
> Merkat
>

```

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