PPT Slide

Any S-expression with dot-notation form

( s1 • ( s2 • ( • • • ( sn • NIL ) • • • ) ) )

has list-notation form

(s1 s2 • • • sn ).

Not all S-expressions have a list-notation form.

( ( a • b) • (c • (d • e ))

But they all have an internal representation.

a

b

c

d

e

car

cdr

List notation is preferred, whenever possible.

1.6

Previous slide

Next slide

Back to first slide

View graphic version