You're right that show isn't in the documentation. I didn't realize that. Everything else unique to Calculize should be documented.
The general syntax for Calculize uses CoffeeScript (
coffeescript.org). This means you can use standard CS features, such as:
List comprehensions:
countdown = (num for num in [10..1])
If / thens placed after the assignment:
myNumber = 10 if myChoice is "good"
...and anything else in standard CoffeeScript.