> (fact 10)
3628800
> (pow 2 10)
1024
> (pow 2 100)
1267650600228229401496703205376
> (mystery 1 2)
5/2
> (mystery 1 3)
8/3
> (mystery 1 10)
9864101/3628800
> (+ .0 (mystery 1 10))
2.7182818011463845
> (exp 1)
2.718281828459045
> (+ .0 (mystery 2 100))
7.38905609893065
> (exp 2)
7.38905609893065
or: bad syntax in: or
> (exists? odd? 1 3)
#t
> (exists? zero? 1 3)
#f
> (exists? zero? -1 3)
#t