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Re: Question about concatenation “a||b” in Maple?

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Rex <aoirex@gmail.com> writes:

> Great thanks Adri. Sorry for my typo for "L:=".
>
> I have one further question. Here's the test code:
>
>         L := [2, 1]
>         test := proc (i) local a1; a1 := 1; add(a || b*L[i], b = 1 ..
> 2) end proc
>         test(1);
> will result
>                           2 a1 + 2 a2
> without evaluating `a1` which is a local variable defined in function
> test.
> I expect to get `2*1+2*a2`.

The catenation operator generates global variables, not locals.
Using indexing if you want to refer to a local by an index.

-- 
Joe Riel

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Question about concatenation “a||b” in Maple? Rex <aoirex@gmail.com> - 2012-02-08 02:53 -0800
  Re: Question about concatenation “a||b” in Maple? "A. van der Meer" <a.w.j.vandermeer@math.utwente.nl> - 2012-02-08 16:22 +0100
    Re: Question about concatenation “a||b” in Maple? Rex <aoirex@gmail.com> - 2012-02-08 10:57 -0800
      Re: Question about concatenation “a||b” in Maple? Joe Riel <joer@san.rr.com> - 2012-02-08 12:52 -0800
        Re: Question about concatenation “a||b” in Maple? Rex <aoirex@gmail.com> - 2012-02-08 14:34 -0800

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