Current functionality:

• Identity
• nFactorial
• nRooks
• nQueens
• numbers
• words (English)
• A particularly useful function for debugging. Just invoke the 'why' function and pass a brief description of your problem, in plain english, as a string. Your code will be analyzed based on your input and you will have an answer in constant time.
• usefulRandom. Functions arity is either 1, 2, or 3. Returns a random number between the first and second parameter (second parameter assumed to be 0 if falsy), and returns an integer value if third parameter is truthy.
• google