Hello, I wrote recently on generating prime numbers

[..] The DoCon program written in Haskell (again, no arrays) gives [..] take 5 $ filter isPrime [(10^9 ::Integer) ..] --> [1000000007,1000000009,1000000021,1000000033,1000000087]

This takes 0.05 sec. [..]

But it is better to refer to the BAL library for Haskell (basAlgPropos) http://www.botik.ru/pub/local/Mechveliani/basAlgPropos/ It is easier to use. ------------------ Sergey Mechveliani mechvel@botik.ru