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Re: problem with append

  • To: mathgroup at smc.vnet.net
  • Subject: [mg129527] Re: problem with append
  • From: Bob Hanlon <hanlonr357 at gmail.com>
  • Date: Mon, 21 Jan 2013 00:06:02 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • Delivered-to: l-mathgroup@wolfram.com
  • Delivered-to: mathgroup-newout@smc.vnet.net
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  • References: <20130120062148.0CB436854@smc.vnet.net>

rr = {};
For[a = 2, a < 6, a++,
    For[b = 2, b < 6, b++,
      AppendTo[rr, a^b]]]

rr

Or

rr = Table[a^b, {a, 2, 5},
    {b, 2, 5}]//Flatten

Or

rr = Table[a^Range[2, 5],
    {a, 2, 5}]//Flatten


Bob Hanlon


On Jan 20, 2013, at 1:21 AM, Paolo cachecho <paolocach at gmail.com> wrote:

> hello i am new to mathmatica.i have the following problem if anyone could help.
>
> For[a = 2, a < 6, a++,
>    For[b = 2, b < 6, b++,
>  Appendto[rr = {}, a^b]]]
> rr
>
> but rr remains empty. how can i solve this
> thank you
>



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