Re: [fricas-devel] Re: [Axiom-mail] A simple question

[Ralf Hemmecke]

> I think this is a little prettier:
>
> (1) -> _<_< (x,y) == hconcat(x,y)$OutputForm
>                                                               Type: Void
>
> (2) -> for n in 10..30 repeat output(n << " = "::Symbol << factor(2^n-1))

> Here, once the concept of << is understood, the only obscure notation
> is probably
>
>   " = "::Symbol
>
> which is just a way to avoid printing the quotation marks " around the string.

Have you tried

(6) -> for n in 10..13 repeat output(n << = << factor(2^n-1))
   10=3 11 31
   11=23 89
       2
   12=3 5 7 13
   13=8191

Well... the spaces around = are missing... one cannot have everything.

Ralf

PS: I still don't like it. There are hidden coercions to OuputForm.