-- Splat into global namespace
import Data.List

-- Splat specific items into global namespace
import Data.List (nub, sort)

-- Splat everything but specific items
import Data.List hiding (nub)

-- Import, but not in global namespace
import qualified Data.List

-- Import, but not in global namespace, but with alias
import qualified Data.List as L

-- In Geometry.hs
module Geometry (
  sphereVolume,
  cubeArea  -- exported functions
) where

sphereVolume :: Float -> Float
sphereVolume radius = (4.0 / 3.0) * pi * (radius ^ 3)

cubeVolume :: Float -> Float
cubeVolume side = side * side * side