> (%i16) infix("+-",300,180);
> (%i17) "+-"(a,b):=[a+b,a-b];
>
> (%i19) y=a+-b;
> (%o19) y=[b+a,a-b]
>
>
> ---------------------------------
>
> S? un Mejor Amante del Cine
> ?Quieres saber c?mo? ?Deja que otras personas te ayuden!.
>
Thanks very much,
(1) However, now when I use 2?3*%i it gives [2+3,2-3]*%i rather than
[2+3*%i,2-3*%i], can this be fixed somehow?
(2) Is it possible to have this working and get it to return, for
"y=2?3*%i, [y=2+3*%i,2-3*%i] instead?
(3) I'm still intrigued by lpos, rpos and pos, if anyone has any answers
on how they work?