Re: [Maxima-discuss] foo(a, 2, 4, 1, 3) -> bar(bar(bar(bar(a, 2), 4), 1), 3) ?

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

On Sun, 10 Jul 2022 at 12:32, Stavros Macrakis <mac...@al...> wrote:
> (...)

Hi Stavros,

I wasn't even aware that this internal representation existed! Many
thanks!!!

Is there a way to make Maxima say where a function is defined, i.e.,
something like "changevar is defined in the `defun changevar' in line
345 of outmis.lisp"? Anything in that direction would help me a lot -
Emacs Lisp and Common Lisp are very different in that part...

> I don't know what exactly your goal is with *foo1* (maybe just a
> test), but a few observations:

My, aham, "academic excuse" for playing with that is that in this
semester several students who took my course of Calculus 2 had never
seen how expressions can be represented as trees... then I thought
that it would be fun & useful to me to have a way to export the
internal representations of expressions to Lua, because I already have
lots of functions in Lua to draw trees, both in ascii art and as
figures in LaTeX.

Another basic question: if I run this,

  ex1 : a*b/c;
  :lisp #$ex1$

I get the internal representation of ex1, which is:

  ((MTIMES SIMP) $A $B ((MEXPT SIMP) $C -1))

How do I get a sexp that is closer to the displayed form?

  Thanks in advance! =)
    Eduardo Ochs
    http://angg.twu.net/eev-maxima.html