[danielf]

Originally Posted by Fobic

Try wrapping the code in [Code][/Code] tags inside the [Spoiler][/Spoiler] tags.

i.e.

[Spoiler][Code]
.....
......
[/Code][/Spoiler]

or similar.

Cheers!

Spoiler: 

(defun mortgage (balance payment rate months)
  (if
      (< balance 0)
      (print months)
    (mortgage (- (+ (* (/ rate 12) balance) balance) payment) payment rate (+ months 1))))