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Pascal's triangle: Difference between revisions
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*Main> take 6 pascal
[[1],[1,1],[1,2,1],[1,3,3,1],[1,4,6,4,1],[1,5,10,10,5,1]]
</pre>
A shorter approach, plagiarized from [http://www.haskell.org/haskellwiki/Blow_your_mind]
<pre>
-- generate next row from current row
nextRow row = zipWith (+) ([0] ++ row) (row ++ [0])
-- returns the first n rows
pascal = iterate nextRow [1]
</pre>
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