Page:Scheme - An interpreter for extended lambda calculus.djvu/6

     This is like the MacLISP, but arranges to evaluate its last argument without an extra net control frame (explained later), so that the last argument may involved in an iteration. Note that in SCHEME, unlike MacLISP, the body of a  expression is not an implicit.     This is like the MacLISP "new-style" ; old-style   is not supported.  ,   These are like  and , but they expect a SCHEME lambda closure for the first argument.  

To use SCHEME, simply incant at DDT (on MIT-AI):

which will load up the current version of SCHEME, which will announce itself and give a prompt. If you want to escape to LISP, merely hit. To restart SCHEME, type. Sometimes one does need to use a LISP  such as  ; this may be accomplished by typing, for example,

After doing this, typing  will, of course, cause SCHEME to read from the file.

This concludes the SCHEME Reference Manual.