[Haskell-cafe] Query on list comprehension

[Adrian Neumann]

Use a nested list comprehension, for example

Prelude> [['a'| i <- [0..n]]++"\n"|n <- [1..3]]
["aa\n","aaa\n","aaaa\n"]



Am 18.03.2009 um 07:47 schrieb Melanie_Green:

>
> What are the limitations of list comprehension. I want to use
> listcomprehension to output the pattern below. So a mixture of a's and
> newline characters. The part im stuck at is creating arguments in the
> listcomprehension to stop at some point then execute next loop. Is  
> it even
> possible to create the pattern below purely from list  
> comprehension.Thankyou
> in advance.
>
> a
> aa
> aaa
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