|
negate:
|
|
- 0
|
|
|
|
set :A [ @++ $ @negate @-- ]
|
|
|
|
set :B [ @-- $ @++ @negate ]
|
|
|
|
test n:
|
|
for i range 0 -- len A:
|
|
if /= n call compose @B! i @A! i n:
|
|
return false
|
|
true
|
|
|
|
test to-num !prompt "Enter a number: "
|
|
if:
|
|
!print "f^-1(f(x)) = x"
|
|
else:
|
|
!print "Something went wrong."
|