Took a shot at implementing PI in Clojure using a reasonably fast
algorithm.
So why is it so slow ? Is BigDecimal just that bad ? Would fixed point
arithmetic be better using BigInteger ?
(MacBook Pro - Intel Core 2 Duo 2.26 GHz - 4GB RAM)
(set! *warn-on-reflection* true)
(import 'java.lang.Mat
Hrm - I couldn't clone any of the clojure builds as they wer'nt listed, and
I see theres no agent that'll build maven2 so my builds just stuck in the
queue.
I guess the servers only setup to build with ant?
--
On Thu, Aug 20, 2009 at 1:13 PM, Howard Lewis Ship wrote:
>
> Why don't you do the
On Aug 21, 5:55 pm, Michel Salim wrote:
> Is there a performance hit with this style (due to using multimethods)
> or will this be optimized away in practice?
There is a slight performance penalty over a normal function call. I
think the dispatching takes one function call, a hash lookup, and a
On Fri, 2009-08-21 at 12:50 -0700, Kevin Downey wrote:
> user=> (defmulti length empty?)
> #'user/length
>
> user=> (defmethod length true [x] 0)
> #
>
> user=> (defmethod length false [x] (+ 1 (length (rest x
> #
>
> user=> (length [1 2 3 4])
> 4
>
Très cool! This could be applied to Meike
Hi,
Am 21.08.2009 um 20:02 schrieb Sigrid:
Could someone point me to what the difference is? I know pattern
matching e.g. from the PLT scheme implementation, and there the
pattern matching also provides the binding and destructuring I
think...?
The difference is, that in pattern matching you
user=> (defmulti length empty?)
#'user/length
user=> (defmethod length true [x] 0)
#
user=> (defmethod length false [x] (+ 1 (length (rest x
#
user=> (length [1 2 3 4])
4
On Fri, Aug 21, 2009 at 12:41 PM, Michel
Salim wrote:
>
> On Fri, 2009-08-21 at 11:02 -0700, Sigrid wrote:
>> Hi,
>>
>
On Fri, 2009-08-21 at 11:02 -0700, Sigrid wrote:
> Hi,
>
> I read the related story on InfoQ and found it an extremely
> interesting and motivating read, Clojure being applied in such an
> interesting field as machine learning!
>
> There is something in the article I'd like to understand better,
Hi,
I read the related story on InfoQ and found it an extremely
interesting and motivating read, Clojure being applied in such an
interesting field as machine learning!
There is something in the article I'd like to understand better, so
i'm just asking here on the group:
"The way that Rich elec
I'm trying to make a decision in a parser library between using
regular maps as states (containing a sequence of remaining tokens, as
well as other info) vs. using metadata maps attached to the sequence
of remaining tokens. In other words:
{:remainder [\r \e \m], :index 3, :line 5, :column 2}
On Aug 21, 12:05 pm, Jan Rychter wrote:
> think crossover in genetic programming (this is actually what I need
> this for).
>
> --J.
Hi,
I've written a genetic programming framework in Clojure, it might
be of interest if you're looking for some inspiration:
http://bitbucket.org/svdm/clojuregp/s
Just an FYI, you can also use the builtin slurp function, which will
return the contents of a given file.
(slurp "file.txt")
Regards,
Travis
On Aug 21, 4:11 am, DemAS wrote:
> Hi all,
>
> I have created the function that read a txt file. I have a very
> little experience in clojure and I w
Hi,
On Aug 21, 10:11 am, DemAS wrote:
> I have created the function that read a txt file. I have a very
> little experience in clojure and I will be thankfull for any
> correction and ideas.
For the record: see (doc line-seq)
But here some suggestions, since learning clojure is your main
On Thu, 2009-08-20 at 21:52 -0700, gutzofter wrote:
> thanks for the version number:
>
> Clojure 1.1.0-alpha-SNAPSHOT
>
> is this from the github?
It's from github, yes. The version number is actually a bit meaningless:
the 'master' branch on github has been on 1.1.0-alpha-SNAPSHOT ever
since 1.
Hi all,
I have created the function that read a txt file. I have a very
little experience in clojure and I will be thankfull for any
correction and ideas.
This is source code:
(defn create-freader [filename]
(def f-reader (new java.io.FileReader filename))
f-reader)
(defn create-br
Hi,
On Aug 21, 12:05 pm, Jan Rychter wrote:
> It isn't what I want. But that's because I misspecified what I actually
> wanted. I didn't think about the problem enough. I need something more
> akin to a splice function:
>
> (splice tree1 index tree2)
>
> (splice '(1 2 (3 4 5) 6) 4 '(7 8 (9 10))
Great job doing the transcript!
On Aug 13, 10:40 pm, Andy Fingerhut
wrote:
> This is the same Clojure for Lispers talk with audio, and video of
> slides, available on clojure.blip.tv, among others, from the September
> 2008 Boston Lisp meeting.
>
> It has been uploaded to the files section of th
Meikel Brandmeyer writes:
> A transcript:
>
> ; Create trees...
> user=> (def t1 [1 [[2 3] 4]])
> #'user/t1
> user=> (def t2 [[[:a :b] :c] :d])
> #'user/t2
>
> ; Create zippers and navigate to subtrees...
> user=> (def zt1 (-> (zip/vector-zip t1) zip/down zip/right))
> #'user/zt1
> user=> (zip/no
bradford cross writes:
> Hi Chad, yep, that was me. We do hope to open source some stuff soon.
>
> First will probably be our wrappers for cascading/hadoop and s3.
Those would be of great interest to many of us. Please do.
--J.
--~--~-~--~~~---~--~~
You receive
Hi,
On Aug 21, 8:34 am, gutzofter wrote:
> (defmacro macro-hello []
> `"hello")
>
> (defn -main []
> (println (eval '(= 0 0))) ;works
> (println (eval '(com.yourcompany.defpackage/macro-hello))) ;works
> (println (eval `(macro-hello))) ;works
> (println (eval '(macro-hello))) ;does no
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