On Thu, Sep 06, 2007 at 03:42:50PM +0200, apfelmus wrote: > Dougal Stanton wrote: >> To create an infinite list where each f(u) depends on the previous u, >> with a single seed value, use 'iterate': > >> main = mapM_ (uncurry (printf "%d %f\n")) (zip [1..50] (iterate f 3)) > > How about > > main = sequence_ $ zipWith (printf "%d %f\n") [1..50] (iterate f 3)
Better yet: main = zipWithM_ (printf "%d %f\n") [1..50] (iterate f 3) Stefan
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