[Haskell-cafe] Elevator pitch for functional programming

[Dan Weston]

One of the coolest things about Haskell is the ability to refer to 
values not yet calculated, without having to work out the timing yourself.

You want Fibonacci numbers?

Prelude> let z = zipWith (+) (0:1:z) (0:z) in take 10 z
[0,1,1,2,3,5,8,13,21,34]

Try doing that in one line of C++.

See also e.g.

http://sigfpe.blogspot.com/2006/12/tying-knots-generically.html

Dan

Jim Burton wrote:
> 
> Jim Burton wrote:
>>
>> Adrian Neumann wrote:
>>> There was a thread about that:
>>>
>>>  > http://www.haskell.org/pipermail/haskell-cafe/2007-September/
>>> 031402.html
>> Thanks! I didn't literally mean "elevator pitch" and if I knew that thread
>> existed would have phrased my post differently, because a list of the
>> things that are cool about Haskell will not impress them. What I want and
>> am finding it hard to create are examples where FP shines and, for the
>> same problem, imperative languages look like more work. 
>>
> 
> Parallelism! Something based on dons' blog
> http://cgi.cse.unsw.edu.au/~dons/blog/2007/11/29#smoking-4core will be a
> good start.
> 
> 
> Many will think of
>> programming solely in terms of developing websites, GUIs, database access,
>> so I will demonstrate how strongly-typed database access can help them.
>>
>> Jim
>>
>> [...]
>>
>>
>