some solutions for MIT Press's "structure and interpretation of computer programs", I guess
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
(define (pascal a b) |
|
(cond ((< a b) #f) |
|
((or (= 0 b) (= a b)) 1) |
|
(else (+ (pascal (- a 1) b) (pascal (- a 1) (- b 1))))))
|
|
|
