# [plt-scheme] Additional material for the helpdesk

 From: Corey Sweeney (corey.sweeney at gmail.com) Date: Fri Dec 30 15:46:20 EST 2005 Previous message: [plt-scheme] Additional material for the helpdesk Next message: [plt-scheme] Additional material for the helpdesk Messages sorted by: [date] [thread] [subject] [author]

```yes, except that instead of "would be", it already is ;) .  For those who
havn't seen it, the scheme cookbook can be found at
http://schemecookbook.org/Cookbook/TOC , and accepts wiki contributions.

Corey

On 12/30/05, Greg Woodhouse <gregory.woodhouse at sbcglobal.net> wrote:
>
> --- Matthias Felleisen <matthias at ccs.neu.edu> wrote:
>
> > On Dec 30, 2005, at 2:41 PM, Corey Sweeney wrote:
> >
> > > I thought of a idea the other day, would it be practical to add the
> >
> > > scheme cookbook to the plt help desk? It would seem that'd be
> > really
> > > usefull.
> >
> > I second this. -- Matthias
> >
> >
>
> So, would it be something like the O'Reilly "Cookbook" format
>
> Problem: You want to apply an operation to the elements of a list.
>
> Solution: Use apply
>
> > (apply + '(1 2 3))
> 6
>
> Discussion: ...
>
> You might even talk about the implied associativity. Does Scheme
> provide an idiom comparable to Haskell's foldl and foldr that can be
> used to force left associativity or right associativity. I.e.,
> discriminating between
>
> > (+ 1 (+ 2 3))
> 6
> and
>
> > (+ (+ 1 2) 3)
> 6
> >
>
> Okay...so I digress.
>
> > >
> > >  Corey
> > >
> > > --
> > > ((lambda (y) (y y)) (lambda (y) (y
> > > y)))_________________________________________________
> > >   For list-related administrative tasks:
> > >   http://list.cs.brown.edu/mailman/listinfo/plt-scheme
> >
> > _________________________________________________
> >   http://list.cs.brown.edu/mailman/listinfo/plt-scheme
> >
>
>
> ===
> Gregory Woodhouse  <gregory.woodhouse at sbcglobal.net>
> "Interaction is the mind-body problem of computing."
> --Philip L. Wadler
>

--
((lambda (y) (y y)) (lambda (y) (y y)))
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