Re: Pad a sign - and + to a list of lists

*To*: mathgroup at smc.vnet.net*Subject*: [mg49771] Re: Pad a sign - and + to a list of lists*From*: Bill Rowe <readnewsciv at earthlink.net>*Date*: Fri, 30 Jul 2004 06:02:23 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

On 7/29/04 at 7:45 AM, sean_incali at yahoo.com (sean kim) wrote: >consider a list of lists > >{ {{1, 1}}, {{1, 2}}, {{1, 3}}, {{2, 1}}, {{2, 2}}, {{2, 3}}, {{3, >1}}, {{3, 2}}, {{3, 3}} >} >Now pad a string or letter to the end of the each list within the >list so u get... >{{1, 1},string}, {{1, 2}, string}, {{1, 3}, string} >or sign >{{1, 1},-}, {{1, 2},-}, {{1, 3},-} For a string or any legal Mathematica expression you can do ({#1, string} & ) /@ {{{1, 1}}, {{1, 2}}, {{1, 3}}, {{2, 1}}, {{2, 2}}, {{2, 3}}, {{3, 1}}, {{3, 2}}, {{3, 3}}} to get {{{{1, 1}}, string}, {{{1, 2}}, string}, {{{1, 3}}, string}, {{{2, 1}}, string}, {{{2, 2}}, string}, {{{2, 3}}, string}, {{{3, 1}}, string}, {{{3, 2}}, string}, {{{3, 3}}, string}} But since the sign operator by itself is not a legal Mathematica expression, I don't think there is a way to do the second. I can of course, pad with the single character "-". -- To reply via email subtract one hundred and four