Haskell: The Craft of Functional Programming
	Simon Thompson
	(c) Addison-Wesley, 1999.

	Chapter 2

	The example scripts FirstScript.hs and FirstLiterate.lhs are provided
	separately.

>	module Chapter2 where
>	import Chapter1

Some example expressions

>	ex1, ex2 :: Int
>	ex1 = double 32 - square (size - double 3)
>	ex2 = double 320 - square (size - double 6)

Some examples of expressions which cause errors; that's why
they appear as comments and not as Haskell text.

	2+(3+4
	2+(3+4))
	double square
	4 double
	4 5
	4 `div` (3*2-6)