Thanks.
I always use DrRacket for editing racket code.
Jos.
> -Original Message-
> From: Greg Hendershott [mailto:greghendersh...@gmail.com]
> Sent: domingo, 29 de junio de 2014 5:55
> To: Jos Koot
> Cc: dev; jja.k...@gmail.com
> Subject: Re: [racket-dev] 2htdp/image
tes, 24 de junio de 2014 2:12
> To: Jos Koot
> Cc: Asumu Takikawa; Kevin Forchione; dev@racket-lang.org;
> jja.k...@gmail.com
> Subject: Re: [racket-dev] 2htdp/image Feature Suggestion
>
> I think that the prefer-define-over-let applies only to the first let
> in this program.
>
In the recommendations of http://docs.racket-lang.org/style/index.html it is
recommended to use (internal or module top-level) define rather than named
let.
I use named let a lot. How would you rewrite the following? For me it is
rather difficult to make the change without loosing track of the scop
May be the discussion goes beyond my understanding, in which case sorry for
my noise. Where I need a value distinct from all other values (such as a
no-value), I prepare an empty struct type and export one single instance of
this struct together with its predicate (and nothing else)
Jos
_
Normally I only read messages of this list. Now I feel I have to reply. I
have seen various floating point systems. Some of them would immediately
force an abort when forming an overflow or underflow. Others would abort
only after referring to underflowed or overflowed floating point (with
trouble
+1, jos
-Original Message-
From: dev-boun...@racket-lang.org [mailto:dev-boun...@racket-lang.org] On
Behalf Of Matthias Felleisen
Sent: miércoles, 17 de agosto de 2011 22:34
To: Racket Dev
Subject: Re: [racket-dev] [racket-bug] all/11778: check syntax does not
workwith path-up
On Aug 17
I enjoyed your videos. Very nice. Can you do something about the missing
menu bar? Also had a look to the first two videos of the computer science
section of khanacademy.org. The second one, because it is not functional,
immediately has to discern objects from copies of objects, which seems a
very
For racket?
jOS
-Original Message-
From: dev-boun...@racket-lang.org [mailto:dev-boun...@racket-lang.org] On
Behalf Of Eli Barzilay
Sent: domingo, 10 de julio de 2011 19:52
To: Sam Tobin-Hochstadt; rafk...@cs.utah.edu; dev@racket-lang.org
Subject: Re: [racket-dev] interactive hack
Ok, `4
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mailto:dev-boun...@racket-lang.org] On Behalf Of Eduardo Bellani
snip
> --
> Eduardo Bellani
>
> omnia mutantur, nihil interit.
The word 'omnia' frequently leads to contradictions, particularly when
applying a sentence conta
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mailto:dev-boun...@racket-lang.org] On Behalf Of Matthias Felleisen
> Sent: 04 May 2011 22:58
> To: Tony Garnock-Jones; D Herring
> Cc: dev List
> Subject: Re: [racket-dev] Inline caching (was Re: my '312'
> this semester,how
I suppose Check Syntax already does alpha conversion. Anyway it
distinguishes between different bindings of the same identifier,
Jos
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mailto:dev-boun...@racket-lang.org] On Behalf Of Carl Eastlund
> Sent: 25 March 2011 19:52
> To
My main admiration is for Shriram Krishnamurthi of course.
But JohnClements gave me the pointer. Hence also credit for him.
Jos
_
From: Gregory Woodhouse [mailto:gregwoodho...@me.com]
Sent: 11 March 2011 20:21
To: John Clements; Shriram Krishnamurthi
Cc: Jos Koot; 'PLT Devel
Brown University Paper on Automata Macros
(http://www.cs.brown.edu/~sk/Publications/Papers/Published/sk-automata-macro
s/) of Shriram Krishnamurthi is an excellent addition.
Jos
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mailto:dev-boun...@racket-lang.org] On Behalf Of Jo
I read your contribution with great interest. One problem that is not
addressed, as far as I have seen, is that any idiot, like me, can install
his/her contributions (modules/collections/packages or whatever)
For a simple windows 7 user as I it is rather difficult to use command line
instructions.
Thanks to you and all other members of PLT.
Jos
> -Original Message-
> From: robby.find...@gmail.com
> [mailto:robby.find...@gmail.com] On Behalf Of Robby Findler
> Sent: 17 February 2011 14:54
> To: Jos Koot
> Cc: PLT Developers
> Subject: Re: [racket-dev] ir
robby.find...@gmail.com
> [mailto:robby.find...@gmail.com] On Behalf Of Robby Findler
> Sent: 16 February 2011 22:30
> To: Jos Koot
> Cc: PLT Developers
> Subject: Re: [racket-dev] irrelevant open problem reports
>
> Thanks!
>
> I went back over these and closed all of them
A problem report query with originator "Jos Koot" shows 10 open PRs. As far
as I can judge, all off them are already fixed or otherwise answered in a
satisfying way. As far as I am concerned, they can be closed.
Now I am enjoying 5.0.1.2.
Thanks to the whole PLT !!
It's ok on my windows 7 system.
Jos
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mailto:dev-boun...@racket-lang.org] On Behalf Of John Clements
> Sent: 04 February 2011 02:20
> To: PLT Developers
> Subject: [racket-dev] Fwd: [racket-bug] drscheme/11585
> impossible to ena
I can't enter racket-lang.org either.
Jos
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mailto:dev-boun...@racket-lang.org] On Behalf Of John Clements
> Sent: 20 January 2011 00:44
> To: plt-dev Developers
> Subject: [racket-dev] racket-lang down?
>
> It looks like racket-l
I was not thinking of unsafe operations.
Jos
> -Original Message-
> From: Vincent St-Amour [mailto:stamo...@ccs.neu.edu]
> Sent: 13 December 2010 18:11
> To: Jos Koot
> Cc: 'Vincent St-Amour'; 'Noel Welsh'; dev@racket-lang.org
> Subject: Re: [rac
> -Original Message-
> From: Vincent St-Amour [mailto:stamo...@ccs.neu.edu]
> Sent: 13 December 2010 17:01
> To: Jos Koot
> Cc: 'Noel Welsh'; dev@racket-lang.org
> Subject: Re: [racket-dev] (round), etc. in Typed Racket
>
> At Mon, 13 Dec 201
forced to produce an approximation
(as in (sqrt 2)).
When it comes to efficiency, flonums may be preferred, but it is not
difficult to enforce a function to do all its computations with flonums.
Jos
> -Original Message-----
> From: Noel Welsh [mailto:noelwe...@gmail.com]
> Sent: 13 De
Does this also mean that procedures like round, floor and ceiling will
produce exact integers even when given an inexact argument? I am not sure
this would be a good idea. For example consider:
Now (round #i1e200) -> flonum of 64 bits.
But (inexact->exact (round #i1e200)) -> exact integer of over 6
Under windows 7 premium home, this does show up with internet explorer but
not with firefox.
Jos
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mailto:dev-boun...@racket-lang.org] On Behalf Of Matthias Felleisen
> Sent: 02 December 2010 04:21
> To: Eli Barzilay
> Cc: lukejor
When truly picking uniformally shuffled lists from a given list, see:
http://telefonica.net/web2/koot/natural-to-permutation.scm
and try
(require srfi/27) ; for random-integer
(require "natural-to-permutation.scm")
(let*
((lst (build-list 1000 (lambda (k) (round (quotient k 10)
(
Thanks. In lacked to see the introduction of this feature. I checked and it
works (OF COURSE)
Jos
> -Original Message-
> From: Matthew Flatt [mailto:mfl...@cs.utah.edu]
> Sent: 12 October 2010 16:40
> To: Jos Koot
> Cc: dev@racket-lang.org
> Subject: Re: [racket-d
We already have begin-with-definitions. Would there be a great penalty to
simply wrap every body-like sequence of expressions and definitions with
begin-with-definitions? The latter even allows more freedom than (let () def
... expr ...), for it allows (begin-with-definitions def-or-expr ...). I am
+1,
In macro definitions that produce code with bodies, I almost by routine
write (let () etc ...)
There may be a problem including the bodies of begin forms, for they may be
lifted out.
Jos
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mailto:dev-boun...@racket-lang.org]
One of the examples reads:
{lambda: [x] x(x)}
(lambda: [x] x(x))
Notice the curly brackets in the first line.
I am not sure I like this.
Nevertheless a nice idea to use colons in order to reduce the number of
parentheses.
Jos
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mai
I think loosing schemecookbook is a loss.
Indeed it no longer responds adequately.
Sad
Jos
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mailto:dev-boun...@racket-lang.org] On Behalf Of Neil Van Dyke
> Sent: 01 August 2010 18:54
> To: Racket Dev List
> Subject: [racket-dev]
With a good editor, like that of DrSceme, pardon me, RdRacket, I experience
no difficulty at all with parentheses. In fact I hardly see them. DrRacket
shows me the extent of a subsexpr very micely. I would have, may be, a
problem when parsing symbolic expressions lacking parenteses, unless, of
cour
I don't want to initiate a war.
However, I want to say that Matthias does understand at least part of his
audience, me included, I am sure. Here I must admit I probably am not a
standard specimen of his audience. On the racket users list many people gave
me very good advice, including both you and
l. There is no reason to wrap it in
a promise.
3:
A stream-pair could be a promise that yieds a pair, but it could also be a pair
whose cdr is a promise. There is no reason to wrap a pair of promises in
another promise.
Your comments/critics/advises are welcome.
Thanks, Jos
Hartelijke groe
You did not mention yourself as first author of HtDP. Do you want me to add
your name?
Jos
> -Original Message-
> From: dev-boun...@racket-lang.org
> [mailto:dev-boun...@racket-lang.org] On Behalf Of Matthias Felleisen
> Sent: 16 June 2010 20:00
> To: John Clements
> Cc: plt edu; plt-dev
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