Re: basic issue with do and :=
- To: mathgroup at smc.vnet.net
- Subject: [mg60423] Re: [mg60402] basic issue with do and :=
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Fri, 16 Sep 2005 03:49:03 -0400 (EDT)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
Clear[a, b];
a[i_] := i;
b[i_] := a[i] + 1;
b[1000]
1001
Bob Hanlon
>
> From: "David" <isolanoster at gmail.com>
To: mathgroup at smc.vnet.net
> Date: 2005/09/15 Thu AM 05:16:22 EDT
> Subject: [mg60423] [mg60402] basic issue with do and :=
>
> Hi all,
>
> this works as (I) expected
>
> -------------------------
> Do[a[i] = i, {i, 10}]
> Do[b[i] =a[i]+1, {i, 10}]
> -------------------------
>
> While this doesn't:
>
> --------------------------
> Do[a[i] = i, {i, 10}]
> Do[b[i] :=a[i]+1, {i, 10}]
> ---------------------------
>
> [note ":=" instead of "=" on the second line].
>
> namely the output is: "b[2]:=a[i]+1" for all i
>
>
>
> Is there any compact way to define: "b[i] :=a[i]+1" for all i ?
>
>
> Thank you in advance,
>
> David
>
>