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*Delivered-to*: mathgroup-newsend@smc.vnet.net*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 >

**References**:**problem with append***From:*Paolo cachecho <paolocach@gmail.com>