Re: [racket] Can I start with Ch 1 to 7 of htdp 2e

2011-12-16 Thread Andrei Estioco
On Sat, Dec 17, 2011 at 10:29 AM, Rajiv Abraham wrote: > > - Where can I get more information about "How to Design Components". I am > really looking forward to this book ! > Or is that "How to Design Classes"? Draft here: http://www.ccs.neu.edu/home/matthias/htdc.html -- Chad Estioco BS Compute

[racket] Can I start with Ch 1 to 7 of htdp 2e

2011-12-16 Thread Rajiv Abraham
Hi, I have been waiting to start playing with htdp 2e . Thanks for posting it online ! - Can I start with Ch 1 to 7 assuming that they are stable enough without major revisions? - Does anyone know the tentative schedule for Ch 8 and on? - Where can I get more information about "How to Design Compo

Re: [racket] Multiple return values

2011-12-16 Thread Markku Rontu
On Fri, Dec 16, 2011 at 3:15 PM, Matthias Felleisen wrote: > > Does Racket blindly inherit from Scheme because of history? > > No, Racketeers choose what to take over and what to leave behind. > Great, I'm waiting for the fruits of the labour with great anticipation and gratitude ;) > > Why are

Re: [racket] Multiple return values

2011-12-16 Thread Jay McCarthy
On Thu, Dec 15, 2011 at 3:32 PM, Neil Toronto wrote: > On 12/15/2011 05:03 AM, Markku Rontu wrote: > >> Named return values, ah the dream of symmetry. >> > > I think my mad-scientist advisor did something like this once. I think it > would be awesome to have this, and of course keyword arguments,

Re: [racket] Multiple return values

2011-12-16 Thread Matthew Flatt
At Fri, 16 Dec 2011 14:45:51 +0200, Markku Rontu wrote: > Hmm, I don't get the logic. Ignored single return value is not a bug and is > ok (because that's how things happened to be in that case in the first > place) but ignored multiple-value is a bug (because that's how things > happened to be in

Re: [racket] Multiple return values

2011-12-16 Thread Matthias Felleisen
Does Racket blindly inherit from Scheme because of history? No, Racketeers choose what to take over and what to leave behind. Why are multiple values useful? Multiple values enable a smooth functional style where pedestrian programmers may have to use clumsy package-unpackage or, worse, im

Re: [racket] Multiple return values

2011-12-16 Thread Markku Rontu
On Fri, Dec 16, 2011 at 2:22 PM, Neil Van Dyke wrote: > Zayr Okale wrote at 12/16/2011 06:52 AM: > > In the simplest cases in CL I can ignore extra values for free (without >> extra wrappers or any other code clutter). In Racket I cannot, and this is >> what prompted my question: why not do it t

Re: [racket] Multiple return values

2011-12-16 Thread Neil Van Dyke
Zayr Okale wrote at 12/16/2011 06:52 AM: In the simplest cases in CL I can ignore extra values for free (without extra wrappers or any other code clutter). In Racket I cannot, and this is what prompted my question: why not do it the CL way? An ignored value of a multiple-value return could be

Re: [racket] Multiple return values

2011-12-16 Thread Zayr Okale
On 15/12/2011 21:17, Tomasz Rola wrote: On Thu, 15 Dec 2011, Zayr Okale wrote: I even do understand what multiple return values are useful for in CL: "okay, the function calculates other potentially useful values anyway, so no reason not to make them available". Unfortunately, this scenario do