please help me , i start on racket and i should write a little programm
"digital clock" in exercice . i have just a book without answer to help me .
this is what i write .
please correct me and give the good answer !
: (define (horloge-numerique T)
(local [(define LARG 100)
(deinne HAUT 100)
(define SCENE (rectangle LARG HAUT 'solid "grey"))
(define NUMBER (integer 10 20 "black"))
(define X0 (/ LARG 2))
(define Y0 (/ HAUT 2))
; le ùmonde est une suite de chiffre allant de 1 jusqu'à 59
(define INIT 0)
(define dT ((NUMBER->digits 123...59)->(NUMBER -> listof-numbers 1
2 3 ... 59)))
(define (suivant T)
(+ T dT))
(define (dessiner T)
(place image listof-number X0 YO SCENE))
(define (final? T)
(>= T 59))]
(big-bang INIT
(on-tick suivant)
(on-draw dessiner LARG HAUT)
(stop-when final?))))
thank you for all
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