# User:WillNess

### From HaskellWiki

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I am a newbie, interested in Haskell. | I am a newbie, interested in Haskell. | ||

+ | |||

+ | I like ''this'': | ||

+ | |||

+ | <haskell> | ||

+ | primes = 2 : 3 : ([5,7..] `minus` | ||

+ | foldi (\x:xs -> (x:) . union xs) | ||

+ | [[p*p,p*p+2*p..] | p <- tail primes]) | ||

+ | </haskell> | ||

+ | |||

+ | <code>foldi</code> is on [[Fold#Tree-like_folds|Tree-like folds]]. More at [[Prime numbers]]. |

## Revision as of 14:36, 23 June 2011

I am a newbie, interested in Haskell.

I like *this*:

primes = 2 : 3 : ([5,7..] `minus` foldi (\x:xs -> (x:) . union xs) [[p*p,p*p+2*p..] | p <- tail primes])

`foldi`

is on Tree-like folds. More at Prime numbers.