Fichier fonc.ex / 3 mars 2000

Welcome to DrScheme, version 101.
Language: Graphical Full Scheme (MrEd).

> (define (double x) (* 2 x))

> (double 3)
6

> (define y 3)

> y
3

> double
#<procedure:double>

> +
#<primitive:+>

> (define g +)

> g
#<primitive:+>

> (g 1 2)
3

> (define (truc x) (if (= x 0) + -))

> truc
#<procedure:truc>

> (truc 0)
#<primitive:+>

> ((truc 0) 7 3)
10

> ((truc 1) 7 3)
4