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Re: Mapping and AppendTo


Hi,

> I would like mix use of Map and AppendTo in the following way (e.g.):
> 
> M = {{0,1,2},{4,5,6,7}};
> AppendTo[#,8]&/@M;
> 
> Of course, this doesn't work, because {0,1,2} is not a symbol name,etc.
> Is there a way to use Hold or Sow to make this construct work?

Do you have a good reason to use AppendTo? With Append you just do:

m = {{0,1,2},{4,5,6,7}};
m = Append[#,8]&/@m;

this seems to be more efficient than anything that uses AppendTo as well...

hth,

albert


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