[Haskell-cafe] Re: Math questions

[Pete Chown]

Mujtaba Boori wrote:

> sure I did enjoy the discussion here Yitzchak Gale. I have already
> submitted several questions ,and you guys were very helpful. However , I
> am not sure how I will use Haskell other than my Haskell course that has
> just finished.

I would very much recommend the Real World Haskell book if you want to 
write real programs with it.  I was interested in Haskell for a long 
time, but it was only after I read that book that I could see how to 
structure larger programs.

I've only written a few real world programs with Haskell, but I do think 
there are some situations where it reduces development time compared to 
other languages.  Ideally, I suppose, you would have a type-safe 
language with the flexibility of Python.  Haskell isn't quite that, but 
it probably gets closer than other languages, thanks to its flexible 
type system and support for type inference.  It's also particularly good 
for parsing text (Parsec is much nicer than yacc) and multithreading 
(the STM module is particularly good).

Downsides: the libraries aren't as complete or well tested as some other 
languages.  Also I suppose it has to be said that functions which update 
state can become clumsy.  The state monad helps with this, but you can 
still find yourself writing more code than you would need in other 
languages.

Pete

PS here is a more serious answer to the original question...

test f1 f2 = and [f1 i == f2 i | i <- [1..100]]