[Maxima-discuss] How do I translate "(map 'list f as)" to Maxima?

[Eduardo O. <edu...@gm...>]

Hi list,

what is the right/recommended way to define something like Lisp's
"map" in Maxima? I tried this,

to_lisp();
  (defun foo (x) (* x 10))
  (map 'list 'foo '(2 3 5 8))             ;;-> (20 30 50 80)
  (to-maxima)

map_list(f, as) := makelist(apply(f, [a]), a, as);
map_list(lambda([x], 10*x), [2, 3, 5, 8]);  /* [20, 30, 50, 80]     */
map_list(lambda([x], x+b),  [2, 3, 5, 8]);  /* [b+2, b+3, b+5, b+8] */
map_list(lambda([x], x+a),  [2, 3, 5, 8]);  /* [4, 6, 10, 16]       */

but it doesn't work well in cases like the last one, in which f
mentions a global variable with the same name as the variable used in
the makelist...

Thanks in advance!
  Cheers =),
    Eduardo Ochs