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Groups > comp.soft-sys.math.maple > #895

Re: Merging two lists

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Am 15.06.2014 19:56, schrieb Axel Vogt:
> On 15.06.2014 05:38, none Rouben Rostamian wrote:
>> Let's say I have the following two lists:
>> M := [a,b,c,d];
>> N := [e,f,g,h];
>>
>> I want to create a list of pairs, as in:
>> [[a, e], [b, f], [c, g], [d, h]]
>>
>> Here is how I do it:
>> [seq([M[i],N[i]], i=1..nops(M))];
>>
>> but that's too pedestrian.  Is there a neater and more elegant
>> way of doing this?
>>
> 
>  From the help for 'zip':
> 
>    zip(`[]`,M ,N);
>                     [[a, e], [b, f], [c, g], [d, h]]
> 
> where I find pedestrian's way much more clear.
> 

Maple V doesn't have it that short, but zip works as follows:
zip((x,y)->[x,y],M ,N);

I did not know "zip" until now. Thanks for telling.

Cheers,
Rainer

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Thread

Merging two lists rouben@shadow.(none) (Rouben Rostamian) - 2014-06-15 03:38 +0000
  Re: Merging two lists Axel Vogt <&noreply@axelvogt.de> - 2014-06-15 19:56 +0200
    Re: Merging two lists Rainer Rosenthal <r.rosenthal@web.de> - 2014-06-16 00:27 +0200
      Re: Merging two lists rouben@shadow.(none) (Rouben Rostamian) - 2014-06-16 20:17 +0000
  Re: Merging two lists Joe Riel <joer@san.rr.com> - 2014-06-15 10:58 -0700
    Re: Merging two lists Joe Riel <joer@san.rr.com> - 2014-06-15 11:02 -0700

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