You might try places. Writing your own gcd seems straightforward. I'm not
sure about integer-sqrt?, tho. Maybe you could make a table or something if
you know there are not that many numbers.
Or maybe someone will adjust the runtime to make those future safe!
Robby
On Wed, Jul 24, 2013 at 11:34
So I should write my own (gcd ) and (square? ) functions?
I can try that, but isn't there a simple way to use threads?
Thanks,
-Joe
On Wed, Jul 24, 2013 at 7:47 PM, Robby Findler
wrote:
> When I run this, the future visualizer shows that gcd and square-number?
> block the futures. square
When I run this, the future visualizer shows that gcd and square-number?
block the futures. square-number? is implemented in TR and if you take it,
you find that integer-sqrt also blocks the futures. I'm not sure if those
functions can be made to run safely in futures or not.
Robby
On Wed, Jul 2
Thank you all for your valuable suggestions. I will try to be social and
practice more.
Thanks again,
Ben
On Thu, Jul 25, 2013 at 1:29 AM, Joe Gilray wrote:
> Hi Ben,
>
> If you want to practice and need some fun problems to work on, I recommend
> going to projecteuler.net and solving problem
Thank you, Pierpaolo. I have done this setting. But Esc is still the only
choice for some key bindings, like `remove-sexp’.
The document [1] says that:
On Windows and Mac OS X, Meta is only available through the Escape key.
I don’t know why.
[1]: http://docs.racket-lang.org/drracket/Keyboar
I have a ProjectEuler problem that I wanted to speed up so I thought I
would try to speed it up with future / touch.
I tried the following:
; function that searches for progressive numbers for a given range of b
values
(define (find-progressive-num b-start b-end b-incr lim)
(for/sum ([b (in-ran
Thanks for the suggestion.
I did think about using a surrogate to wrap the existing "wxmedia" object -
but that would not help me instantiate the custom snip.
I have a cut-n-paste version working, although it seems that editor-snip-class%
has access to hidden methods of editor-stream-in% and edit
At Wed, 24 Jul 2013 15:03:01 -0700, Nick Main wrote:
> I created an extended editor-snip% class (also using the graph-snip-mixin)
> and put an instance of this on a pasteboard% (altered
> via graph-pasteboard-mixin) and then saved the pasteboard to a file.
>
> Reading this file back into the paste
I created an extended editor-snip% class (also using the graph-snip-mixin)
and put an instance of this on a pasteboard% (altered
via graph-pasteboard-mixin) and then saved the pasteboard to a file.
Reading this file back into the pasteboard fails (no visible errors
either). Doing the same with a n
Hi Ben,
If you want to practice and need some fun problems to work on, I recommend
going to projecteuler.net and solving problem #1. Then read the forum to
see how others solved it. Solve problem #2... rinse and repeat.
By the time you get to problem #60 you will have built a little toolbox of
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On Wed, Jul 24, 2013 at 5:28 PM, Ben Duan wrote:
> I have a question here. `esc' is used as the Meta key for key bindings in
> Windows, for example key `esc;c:k' for `M-C-k'. Why not use `Alt' key
> instead? Is it because Windows captured these keys?
In the default configuration, the Alt key is
Dear all,
Thank you for your fantastic support for Windows. It's an important reason
for me to choose Racket. Although I don't have a preference for Windows, I
have to work on Window. Many popular languages are quite unfriendly to
Windows.
I have a question here. `esc' is used as the Meta key for
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