I like sigfpe's introduction to monads:
http://sigfpe.blogspot.com/2006/08/you-could-have-invented-monads-
and.html
-- Lennart
On Aug 26, 2006, at 14:04 , Andrea Rossato wrote:
Il Fri, Aug 25, 2006 at 01:13:58PM -0400, Cale Gibbard ebbe a
scrivere:
Hey cool, a new monad tutorial! :)
Just out of interest, have you seen my Monads as Containers article?
http://www.haskell.org/haskellwiki/Monads_as_Containers
Let me know what you think of it. I find that often newcomers to
monads will find the container perspective easier to grasp before
moving on to treating monads as an abstraction of computation, but
that side of things needs coverage too. :)
Sure I've read it!
I must confess I find it difficult, though. I mean, the
exemplification part is very interesting but, for me, it was too
difficult to connect it to the code I was looking at.
This is way I decided this approach: let's start building a monad and
see what it is by actually looking it at work.
The evaluator is a very simple piece of code, you can clearly see what
it does.
And then you start building up your knowledge by expanding it.
Take into account that, for me, *writing* that tutorial is *the* way
to get to grasp all the concepts behind the type system (and monads).
As you can see in a thread below, I'm studying hard in order to find
out the proper continuation of the tutorial, and for my learning.
So far I'll be able to describe the code of a statefull evaluator that
produces output. Then I'd like to add exception handling.
Let's see if I'll be able to get that far...
By the way, I'll soon add links to the other important tutorials on
monads: yours, IO Inside, All about monads.
At the I'd like to be able to link A Gentle introduction, the
Haskell 98 Report and, why not, "Write yourself a Scheme in 48
hours".
That will be it.
Thanks for your kind attention.
Andrea
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