PPT Slide

are forms for evaluating Lisp expressions.

( eval < unevaluated expression > )

evaluates the expression and

returns the result

( eval '( + 2 3 ) ) returns 5

( apply < function name > < arg list > )

applies the function to the list of args.

( apply #'+ '( 2 3 ) ) returns 5

( apply ( function ( lambda ( x ) (* x x ) ) '(2) )

returns 4

( funcall < function name > < separate args > )

does the same

( funcall #'+ 2 3 ) returns 5