wolf:~/public_html/links> clisp
  i i i i i i i       ooooo    o        ooooooo   ooooo   ooooo
  I I I I I I I      8     8   8           8     8     o  8    8
  I  \ `+' /  I      8         8           8     8        8    8
   \  `-+-'  /       8         8           8      ooooo   8oooo
    `-__|__-'        8         8           8           8  8
        |            8     o   8           8     o     8  8
  ------+------       ooooo    8oooooo  ooo8ooo   ooooo   8

Welcome to GNU CLISP 2.49 (2010-07-07) <http://clisp.cons.org/>

Copyright (c) Bruno Haible, Michael Stoll 1992, 1993
Copyright (c) Bruno Haible, Marcus Daniels 1994-1997
Copyright (c) Bruno Haible, Pierpaolo Bernardi, Sam Steingold 1998
Copyright (c) Bruno Haible, Sam Steingold 1999-2000
Copyright (c) Sam Steingold, Bruno Haible 2001-2010

Type :h and hit Enter for context help.

[1]> (load "tethered_goat_solution.lsp")
;; Loading file tethered_goat_solution.lsp ...
;; Loaded file tethered_goat_solution.lsp
T
[2]> total-area
14196.857201572275645L0
[3]> larger-area
13969.877132350413084L0
[4]> smaller-area
226.98006922186256148L0
[5]> rope-length
77
[6]> barn-small-side
60
[7]> barn-long-side
100
[8]> (bye)
Bye.