hunk ./help/collection.help.scm 3
-(differentiate '(1 2 4 7 11))
+(equal? (differentiate '(1 2 4 7 11))
+        '(1 1 2 3 4))
hunk ./help/collection.help.scm 6
-(integrate '(1 1 2 3 4))
+(equal? (integrate '(1 1 2 3 4))
+        '(1 2 4 7 11))