[Haskell-cafe] Homework help - calculator function

[Vo Minh Thu]

2011/6/22 Gregory Collins <greg at gregorycollins.net>:
> On Wed, Jun 22, 2011 at 4:39 PM, SM Design <social_media at abv.bg> wrote:
>>  I have a homework which is very important to be done but I can't complete
>> the task at all. The program i should write is:
>
> Nobody on this list is going to do your homework for you, or at least
> I hope not. Before you expect to get help, you should a) demonstrate
> that you've made an effort to solve the problem on your own,  b)
> explain where you've gotten stuck and what it is you don't understand
> about how to move forward.

In addition to what Gregory said, please have a look to this page:
http://www.haskell.org/haskellwiki/Homework_help

Cheers,
Thu