Very tiny Lisp, Forths and some Pascal like at http://t3x.org

One of them whole numbers as lists. I saw no floats, but there are fractional numbers.

    (- '#2 '#3)
    => '#-1

If you want to know what is truly Lisp about:

Easy mode:

http://t3x.org/zsp/index.html

You are Alonzo Church reincarnated:

http://t3x.org/clc/code.html