Re: [Haskell-cafe] Suggestions For An Intro To Monads Talk.

Hi, Please take a look at this video http://videoarch1.s-inf.de/FP.2005-SS-Giesl.(COt).HD_Videoaufzeichnung/2005-... Here Monad's are explained as "something" that helps making your program modular. The teacher gives an example implementation of an expression evaluator with and without monads. It takes a complete rewrite to incorporate changes in the program without monads where as only minor tweaks are required for the implementation with monads - also, its easier to identify the location where change needs to be done and the change is isolated. And the flow is pretty nice - as in, people will not doze off :) Regards, Kashyap On Tue, Aug 3, 2010 at 10:04 PM, Colin Paul Adams wrote:

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"Alexander" == Alexander Solla writes:

Alexander> On Aug 3, 2010, at 2:51 PM, aditya siram wrote:

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I am looking for suggestions on how to introduce the concept and its

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implications. I'd also like to include a section on why monads exist and why we don't really see them outside of Haskell.

Alexander> Start with functors (things that attach Alexander> values/functions/functors to values in an algebra). Move Alexander> on to applicative functors (functors that can interpret Alexander> the thing that is getting things attached to it). Move Alexander> on to monads

Too late! The audience has already dozed off.

Alexander> (applicative functors where you can Alexander> explicitly control the order of Alexander> evaluation/interpretation).

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-- Regards, Kashyap