Haskell - lecture 5

-- Lambda functions are specified with a backslash.
-- (\x -> x*(x-1)) 4   =   12
-- (\x -> (\y -> ((+) y 1))) 2 3   =   4
-- (\x -> (\y -> ((/) x y))) 10 2   =   5.0
-- (\y -> ((+) y x)) 5   =   ERROR - Undefined variable "x"
-- (\x -> (\z -> ((/) z 2)) x) 3   =   1.5
-- (\x -> (\z -> ((*) x z)) x) 3   =   9