w_a_x_...@yahoo.com wrote:
> On Dec 25, 5:24 am, Xah Lee wrote:
>
> > The JavaScript example:
> >
> > // Javascript. By William James
> > function normalize( vec ) {
> > var div=Math.sqrt(vec.map(function(x) x*x).reduce(function(a,b)
> > a+b)) return vec.map(function(x) x/div)
> >
> > }
> >
On Jan 21, 1:06 pm, "soul.mirr...@gmail.com"
wrote:
> On Dec 4 2008, 5:11 am, Andreas Waldenburger
> wrote:
> > I vaguely remember you plonking [Xah Lee] before. Did you unplonk him in
> > the meantime? Or was that just a figure of speech?
>
> > teasingly yours,
> > /W
>
> Andreas Waldenburger, I
On Dec 4 2008, 5:11 am, Andreas Waldenburger
wrote:
> On Wed, 03 Dec 2008 20:38:44 -0500 Lew wrote:
>
> > Xah Lee wrote:
> > > enough babble ...
>
> > Good point. Plonk. Guun dun!
>
> I vaguely remember you plonking the guy before. Did you unplonk him in
> the meantime? Or was that just a figur
s...@netherlands.com wrote:
On Thu, 25 Dec 2008 21:50:29 +, Jon Harrop wrote:
Xah Lee wrote:
On Dec 10, 2:47 pm, John W Kennedy wrote:
C:
#include
#include
void normal(int dim, float* x, float* a) {
float sum = 0.0f;
int i;
float divisor;
for (i = 0; i < dim; ++i) sum
On Thu, 25 Dec 2008 21:50:29 +, Jon Harrop wrote:
>Xah Lee wrote:
>>> >On Dec 10, 2:47 pm, John W Kennedy wrote:
>>> >> C:
>>>
>>> >> #include
>>> >> #include
>>>
>>> >> void normal(int dim, float* x, float* a) {
>>> >> float sum = 0.0f;
>>> >> int i;
>>> >> float divisor;
>>>
Xah Lee wrote:
>> >On Dec 10, 2:47 pm, John W Kennedy wrote:
>> >> C:
>>
>> >> #include
>> >> #include
>>
>> >> void normal(int dim, float* x, float* a) {
>> >> float sum = 0.0f;
>> >> int i;
>> >> float divisor;
>> >> for (i = 0; i < dim; ++i) sum += x[i] * x[i];
>> >> divis
On Dec 25, 5:24 am, Xah Lee wrote:
> The JavaScript example:
>
> // Javascript. By William James
> function normalize( vec ) {
> var div=Math.sqrt(vec.map(function(x) x*x).reduce(function(a,b) a+b))
> return vec.map(function(x) x/div)
>
> }
>
> is also not qualified. (it is syntax error in Spid
> >On Dec 10, 2:47 pm, John W Kennedy wrote:
> >> C:
>
> >> #include
> >> #include
>
> >> void normal(int dim, float* x, float* a) {
> >> float sum = 0.0f;
> >> int i;
> >> float divisor;
> >> for (i = 0; i < dim; ++i) sum += x[i] * x[i];
> >> divisor = sqrt(sum);
> >> fo
On Dec 12, 12:12 am, Xah Lee wrote:
> On Dec 11, 6:50 am, the.brown.dragon.b...@gmail.com wrote:
> ;; Chicken Scheme. By the.brown.dragon...@gmail.com
> (require 'srfi-1)
> (define (normalize vec)
> (map (cute / <> (sqrt (reduce + 0 (map (cute expt <> 2) vec
> vec))
>
> Is it possible to mak
George Neuner wrote:
On Thu, 11 Dec 2008 10:41:59 -0800 (PST), Xah Lee
wrote:
On Dec 10, 2:47 pm, John W Kennedy wrote:
Xah Lee wrote:
In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
you'll have 50 or hundreds lines.
C:
#include
#include
void normal(int dim, float
On Mon, 8 Dec 2008 15:14:18 -0800 (PST), Xah Lee
wrote:
>Dear George Neuner,
>
>Xah Lee wrote:
>> >For example,
>> >the level or power of lang can be roughly order as
>> >this:
>>
>> >assembly langs
>> >C, pascal
>> >C++, java, c#
>> >unix shells
>> >perl, python, ruby, php
>> >lisp
>> >Mathemati
On Thu, 11 Dec 2008 10:41:59 -0800 (PST), Xah Lee
wrote:
>On Dec 10, 2:47 pm, John W Kennedy wrote:
>> Xah Lee wrote:
>> > In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
>> > you'll have 50 or hundreds lines.
>>
>> C:
>>
>> #include
>> #include
>>
>> void normal(int dim,
On Wed, 10 Dec 2008 21:37:34 + (UTC), Kaz Kylheku
wrote:
>Now try writing a device driver for your wireless LAN adapter in Mathematica.
Notice how Xah chose not to respond to this.
George
--
http://mail.python.org/mailman/listinfo/python-list
On Dec 11, 6:46 am, "William James" wrote:
> John W Kennedy wrote:
> > Xah Lee wrote:
> > > In lisp, python, perl, etc, you'll have 10 or so lines. In C or
> > > Java, you'll have 50 or hundreds lines.
>
> > Java:
>
> > static float[] normal(final float[] x) {
> >float sum = 0.0f;
> >for (
Xah Lee wrote:
> On Dec 10, 2:47 pm, John W Kennedy wrote:
>> Xah Lee wrote:
>> > In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
>> > you'll have 50 or hundreds lines.
>>
>> C:
>>
>> #include
>> #include
>>
>> void normal(int dim, float* x, float* a) {
>> float sum = 0.0f;
In article
<5ebe5a7d-cbdf-4d66-a816-a7d2a0a27...@40g2000prx.googlegroups.com>, Xah
Lee wrote:
> On Dec 10, 2:47 pm, John W Kennedy wrote:
> > Xah Lee wrote:
> > > In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
> > > you'll have 50 or hundreds lines.
> >
> > C:
> >
> > #inc
On Dec 11, 2008, at 13:41 , Xah Lee wrote:
On Dec 10, 2:47 pm, John W Kennedy wrote:
Xah Lee wrote:
In lisp, python, perl, etc, you'll have 10 or so lines. In C or
Java,
you'll have 50 or hundreds lines.
C:
#include
#include
void normal(int dim, float* x, float* a) {
float sum = 0
On Dec 11, 6:50 am, the.brown.dragon.b...@gmail.com wrote:
;; Chicken Scheme. By the.brown.dragon...@gmail.com
(require 'srfi-1)
(define (normalize vec)
(map (cute / <> (sqrt (reduce + 0 (map (cute expt <> 2) vec
vec))
Is it possible to make it work in scsh? (i'm running scsh 0.6.4, and
don'
On Dec 10, 2:47 pm, John W Kennedy wrote:
> Xah Lee wrote:
> > In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
> > you'll have 50 or hundreds lines.
>
> C:
>
> #include
> #include
>
> void normal(int dim, float* x, float* a) {
> float sum = 0.0f;
> int i;
> floa
Xah Lee wrote:
• A Example of Mathematica's Expressiveness
http://xahlee.org/UnixResource_dir/writ/Mathematica_expressiveness.html
On Dec 11, 3:53 am, "William James" wrote:
> function normal( ary )
> { var div = Math.sqrt(
> ary.map(function(x) x*x).reduce(function(a,b) a+b) )
> return
On Dec 11, 12:32 am, Gerard flanagan <[EMAIL PROTECTED]> wrote:
> Xah Lee wrote:
> > On Dec 10, 2:47 pm, John W Kennedy <[EMAIL PROTECTED]> wrote:
> >> Xah Lee wrote:
> >>> In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
> >>> you'll have 50 or hundreds lines.
> [...]
>
> > Th
Andreas Waldenburger wrote:
On Thu, 11 Dec 2008 05:40:45 + Paul Rudin <[EMAIL PROTECTED]>
wrote:
"Dotan Cohen" <[EMAIL PROTECTED]> writes:
2008/12/10 <[EMAIL PROTECTED]>:
Ruby:
def norm a
s = Math.sqrt(a.map{|x|x*x}.inject{|x,y|x+y})
a.map{|x| x/s}
end
If som
On Thu, 11 Dec 2008 05:40:45 + Paul Rudin <[EMAIL PROTECTED]>
wrote:
> "Dotan Cohen" <[EMAIL PROTECTED]> writes:
>
> > 2008/12/10 <[EMAIL PROTECTED]>:
> >> Ruby:
> >>
> >> def norm a
> >> s = Math.sqrt(a.map{|x|x*x}.inject{|x,y|x+y})
> >> a.map{|x| x/s}
> >> end
> >
> > If someone doesn't
William James wrote:
> John W Kennedy wrote:
>
> > Xah Lee wrote:
> > > In lisp, python, perl, etc, you'll have 10 or so lines. In C or
> > > Java, you'll have 50 or hundreds lines.
> >
>
> > Java:
> >
> > static float[] normal(final float[] x) {
> >float sum = 0.0f;
> >for (int i = 0;
On Dec 11, 7:50 pm, [EMAIL PROTECTED] wrote:
> On Dec 11, 4:53 pm, "William James" <[EMAIL PROTECTED]> wrote:
>
>
>
> > William James wrote:
> > > John W Kennedy wrote:
>
> > > > Xah Lee wrote:
> > > > > In lisp, python, perl, etc, you'll have 10 or so lines. In C or
> > > > > Java, you'll have 50
On Dec 11, 4:53 pm, "William James" <[EMAIL PROTECTED]> wrote:
> William James wrote:
> > John W Kennedy wrote:
>
> > > Xah Lee wrote:
> > > > In lisp, python, perl, etc, you'll have 10 or so lines. In C or
> > > > Java, you'll have 50 or hundreds lines.
>
> > > Java:
>
> > > static float[] normal(
William James wrote:
> John W Kennedy wrote:
>
> > Xah Lee wrote:
> > > In lisp, python, perl, etc, you'll have 10 or so lines. In C or
> > > Java, you'll have 50 or hundreds lines.
> >
>
> > Java:
> >
> > static float[] normal(final float[] x) {
> >float sum = 0.0f;
> >for (int i = 0;
John W Kennedy wrote:
> Xah Lee wrote:
> > In lisp, python, perl, etc, you'll have 10 or so lines. In C or
> > Java, you'll have 50 or hundreds lines.
>
> Java:
>
> static float[] normal(final float[] x) {
>float sum = 0.0f;
>for (int i = 0; i < x.length; ++i) sum += x[i] * x[i];
>f
Xah Lee wrote:
On Dec 10, 2:47 pm, John W Kennedy <[EMAIL PROTECTED]> wrote:
Xah Lee wrote:
In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
you'll have 50 or hundreds lines.
[...]
Thanks to various replies.
I've now gather code solutions in ruby, python, C, Java, here:
"Dotan Cohen" <[EMAIL PROTECTED]> writes:
> 2008/12/10 <[EMAIL PROTECTED]>:
>> On Dec 5, 9:51 am, Xah Lee <[EMAIL PROTECTED]> wrote:
>>>
>>> For those of you who don't know linear algebra but knows coding, this
>>> means, we want a function whose input is a list of 3 elements say
>>> {x,y,z}, and
On Dec 10, 3:37 pm, [EMAIL PROTECTED] wrote:
> On Dec 5, 9:51 am, Xah Lee <[EMAIL PROTECTED]> wrote:
>
>
>
> > For those of you who don't know linear algebra but knows coding, this
> > means, we want a function whose input is a list of 3 elements say
> > {x,y,z}, and output is also a list of 3 elem
Arnaud Delobelle wrote:
> def unit(v):
> return map((sum(map(lambda x:x*x, v))**0.5).__rdiv__, v)
>
> The hard bit was to make it less readable than the Ruby version ;)
I loved the use of __rdiv__ :)
I would have proposed the more straightforward:
def u(v):
return [x/sum(x**2 for
In R:
norm = function(v) v/sqrt(sum(v^2))
:)
Juan Pablo
2008/12/10 Arnaud Delobelle <[EMAIL PROTECTED]>:
> "Dotan Cohen" <[EMAIL PROTECTED]> writes:
>
>> 2008/12/10 <[EMAIL PROTECTED]>:
>>> On Dec 5, 9:51 am, Xah Lee <[EMAIL PROTECTED]> wrote:
For those of you who don't know l
On Dec 10, 6:51 pm, Xah Lee <[EMAIL PROTECTED]> wrote:
> I've now gather code solutions in ruby, python, C, Java, here:
>
> now lacking is perl, elisp, which i can do well in a condensed way.
> It'd be interesting also to have javascript... and perhaps erlang,
> OCaml/F#, Haskell too.
Pay me $6
Jon Harrop wrote:
> Xah Lee wrote:
> > On Dec 10, 12:37 pm, [EMAIL PROTECTED] wrote:
> >> Ruby:
> > >
> >> def norm a
> >> s = Math.sqrt(a.map{|x|x*x}.inject{|x,y|x+y})
> >> a.map{|x| x/s}
> >> end
> >
> > I don't know ruby, but i tried to run it and it does not work.
> >
> > #ruby
> > def
On Dec 10, 2:47 pm, John W Kennedy <[EMAIL PROTECTED]> wrote:
> Xah Lee wrote:
> > In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
> > you'll have 50 or hundreds lines.
>
> C:
>
> #include
> #include
>
> void normal(int dim, float* x, float* a) {
> float sum = 0.0f;
>
On 2008-12-10, Xah Lee <[EMAIL PROTECTED]> wrote:
> Xah Lee wrote:
>> > means, we want a function whose input is a list of 3 elements say
^^ ^^^
> Kaz, pay attention:
[ reformatted to 7 bit USASCII ]
> Xah wrote: Note, that the norm
> o
Bakul Shah wrote:
John W Kennedy wrote:
Xah Lee wrote:
In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
you'll have 50 or hundreds lines.
C:
#include
#include
void normal(int dim, float* x, float* a) {
float sum = 0.0f;
int i;
float divisor;
for (i = 0; i
John W Kennedy wrote:
Xah Lee wrote:
In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
you'll have 50 or hundreds lines.
C:
#include
#include
void normal(int dim, float* x, float* a) {
float sum = 0.0f;
int i;
float divisor;
for (i = 0; i < dim; ++i) sum +=
Jon Harrop wrote:
Xah Lee wrote:
Kaz Kylheku wrote:
Really? ``50 or hundreds'' of lines in C?
#include /* for sqrt */
void normalize(double *out, double *in)
{
double denom = sqrt(in[0] * in[0] + in[1] * in[1] + in[2] *
in[2]);
out[0] = in[0]/denom;
out
On 12/10/08, Jon Harrop <[EMAIL PROTECTED]> wrote:
> Xah Lee wrote:
>> Kaz Kylheku wrote:
>>> Really? ``50 or hundreds'' of lines in C?
>>>
>>> #include /* for sqrt */
>>>
>>> void normalize(double *out, double *in)
>>> {
>>> double denom = sqrt(in[0] * in[0] + in[1] * in[1] + in[2]
Xah Lee wrote:
> Kaz Kylheku wrote:
>> Really? ``50 or hundreds'' of lines in C?
>>
>> #include /* for sqrt */
>>
>> void normalize(double *out, double *in)
>> {
>> double denom = sqrt(in[0] * in[0] + in[1] * in[1] + in[2] *
>> in[2]);
>>
>> out[0] = in[0]/denom;
>>
Xah Lee wrote:
In lisp, python, perl, etc, you'll have 10 or so lines. In C or Java,
you'll have 50 or hundreds lines.
C:
#include
#include
void normal(int dim, float* x, float* a) {
float sum = 0.0f;
int i;
float divisor;
for (i = 0; i < dim; ++i) sum += x[i] * x[i];
divisor
Xah Lee wrote:
> On Dec 10, 12:37 pm, [EMAIL PROTECTED] wrote:
>> Ruby:
>>
>> def norm a
>> s = Math.sqrt(a.map{|x|x*x}.inject{|x,y|x+y})
>> a.map{|x| x/s}
>> end
>
> I don't know ruby, but i tried to run it and it does not work.
>
> #ruby
> def norm a
> s = Math.sqrt(a.map{|x|x*x}.inject{|
"Dotan Cohen" <[EMAIL PROTECTED]> writes:
> 2008/12/10 <[EMAIL PROTECTED]>:
>> On Dec 5, 9:51 am, Xah Lee <[EMAIL PROTECTED]> wrote:
>>>
>>> For those of you who don't know linear algebra but knows coding, this
>>> means, we want a function whose input is a list of 3 elements say
>>> {x,y,z}, and
Xah Lee wrote:
> > For those of you who don't know linear algebra but knows coding, this
> > means, we want a function whose input is a list of 3 elements say
> > {x,y,z}, and output is also a list of 3 elements, say {a,b,c}, with
> > the condition that
> >
> > a = x/Sqrt[x^2+y^2+z^2]
> > b = y/Sqr
Xah Lee wrote:
> > Let's say for example, we want to write a function that takes a vector
> > (of linear algebra), and return a vector in the same direction but
> > with length 1. In linear algebar terminology, the new vector is called
> > the “normalized” vector of the original.
>
> > For those of
On 2008-12-05, Xah Lee <[EMAIL PROTECTED]> wrote:
> Let's say for example, we want to write a function that takes a vector
> (of linear algebra), and return a vector in the same direction but
> with length 1. In linear algebar terminology, the new vector is called
> the “normalized” vector of the o
2008/12/10 <[EMAIL PROTECTED]>:
> On Dec 5, 9:51 am, Xah Lee <[EMAIL PROTECTED]> wrote:
>>
>> For those of you who don't know linear algebra but knows coding, this
>> means, we want a function whose input is a list of 3 elements say
>> {x,y,z}, and output is also a list of 3 elements, say {a,b,c},
On Dec 5, 9:51 am, Xah Lee <[EMAIL PROTECTED]> wrote:
>
> For those of you who don't know linear algebra but knows coding, this
> means, we want a function whose input is a list of 3 elements say
> {x,y,z}, and output is also a list of 3 elements, say {a,b,c}, with
> the condition that
>
> a = x/Sq
2008/12/10 Xah Lee <[EMAIL PROTECTED]>
> Jon Harrop moron wrote:
> > Only for trivial input and not for the challenge you were given.
>
> what challenge?
>
> > That code is evaluated once to build the scene. There is no point in
> > optimizing it.
>
> The point is optimizing your incompetence.
>
>
Stef Mientki wrote:
> Who said Mathematica was a high level language ?
Xah is using what he calls "highlevelness" as an excuse for poor
performance.
--
Dr Jon D Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/?u
--
http://mail.python.org/mailman/listinfo/python-list
On 12/10/08, Xah Lee <[EMAIL PROTECTED]> wrote:
> On Dec 8, 5:25 pm, Terry Reedy <[EMAIL PROTECTED]> wrote:
>> Lest anyone doubt that problem size is important for comparing program
>> run times, consider ...
>
> just in case there's any doubt:
>
> Simply change these lines in Jon's program:
>
> Ma
Jon Harrop moron wrote:
> Only for trivial input and not for the challenge you were given.
what challenge?
> That code is evaluated once to build the scene. There is no point in
> optimizing it.
The point is optimizing your incompetence.
> That performance issue only affects trivial problems an
On Tue, 9 Dec 2008 15:01:11 -0800 (PST), Xah Lee <[EMAIL PROTECTED]> wrote:
>
>On Dec 8, 4:56 pm, Jon Harrop <[EMAIL PROTECTED]> wrote:
>> Xah Lee wrote:
>> > A moron, wrote:
>> > > You failed the challenge that you were given.
>>
>> > you didn't give me a challenge.
>>
>> Thomas gave you the chal
On Tue, 9 Dec 2008 15:19:47 -0800 (PST), Xah Lee <[EMAIL PROTECTED]> wrote:
>On Dec 8, 4:07 am, Jon Harrop <[EMAIL PROTECTED]> wrote:
>> [EMAIL PROTECTED] wrote:
>> > Well, its past 'tonight' and 6 hours to go till past 'tomorrow'.
>> > Where the hell is it Zah Zah?
>>
>> Note that this program ta
Xah Lee wrote:
> On Dec 8, 5:25 pm, Terry Reedy <[EMAIL PROTECTED]> wrote:
>> Lest anyone doubt that problem size is important for comparing program
>> run times, consider ...
>
> just in case there's any doubt:
>
> Simply change these lines in Jon's program:
>
> Main[9, 512, 4] to Main[9, 512,
On Dec 10, 9:19 am, Xah Lee <[EMAIL PROTECTED]> wrote:
> I'm not sure he's intentionally making Mathematica look bad or just
> sloppiness.
Actually, there's only one person here tainting Mathematica by
association, and it's not Jon.
--
http://mail.python.org/mailman/listinfo/python-list
On Dec 8, 4:07 am, Jon Harrop <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] wrote:
> > Well, its past 'tonight' and 6 hours to go till past 'tomorrow'.
> > Where the hell is it Zah Zah?
>
> Note that this program takes several days to compute in Mathematica (even
> though it takes under four secon
On Dec 8, 5:25 pm, Terry Reedy <[EMAIL PROTECTED]> wrote:
> Lest anyone doubt that problem size is important for comparing program
> run times, consider ...
just in case there's any doubt:
Simply change these lines in Jon's program:
Main[9, 512, 4] to Main[9, 512, 4.]
and it will run faster.
A
On Dec 8, 4:56 pm, Jon Harrop <[EMAIL PROTECTED]> wrote:
> Xah Lee wrote:
> > A moron, wrote:
> > > You failed the challenge that you were given.
>
> > you didn't give me a challenge.
>
> Thomas gave you the challenge:
>
> "What I want in return is you to execute and time Dr. Harrop's original
>
On Dec 8, 4:56 pm, Jon Harrop <[EMAIL PROTECTED]> wrote:
> Xah Lee wrote:
> > A moron, wrote:
> > > You failed the challenge that you were given.
>
> > you didn't give me a challenge.
>
> Thomas gave you the challenge:
>
> "What I want in return is you to execute and time Dr. Harrop's original
>
A flamer wrote:
A moron, wrote:
[snip]
my machine (PPC Mac, OSX 10.4.x).
Well, that explains a great deal.
Actually, I suspect all these newsgroups are being trolled.
--
http://mail.python.org/mailman/listinfo/python-list
Jon Harrop wrote:
[EMAIL PROTECTED] wrote:
For the interested, with MMA 6, on a Pentium 4 3.8Ghz:
The code that Jon posted:
Timing[Export["image-jon.pgm", [EMAIL PROTECTED]@Main[2, 100, 4]]]
{80.565, "image-jon.pgm"}
That is not the code I posted: you are using Xah's parameters that generate
[EMAIL PROTECTED] wrote:
> For the interested, with MMA 6, on a Pentium 4 3.8Ghz:
>
> The code that Jon posted:
>
> Timing[Export["image-jon.pgm", [EMAIL PROTECTED]@Main[2, 100, 4]]]
> {80.565, "image-jon.pgm"}
That is not the code I posted: you are using Xah's parameters that generate
a differe
Xah Lee wrote:
> A moron, wrote:
> > You failed the challenge that you were given.
>
> you didn't give me a challenge.
Thomas gave you the challenge:
"What I want in return is you to execute and time Dr. Harrop's original
code, posting the results to this thread... By Dr. Harrop's original cod
Dear George Neuner,
Xah Lee wrote:
> >The phenomenon of creating code that are inefficient is proportional
> >to the highlevelness or power of the lang. In general, the higher
> >level of the lang, the less possible it is actually to produce a code
> >that is as efficient as a lower level lang.
G
On Sun, 7 Dec 2008 14:53:49 -0800 (PST), Xah Lee <[EMAIL PROTECTED]>
wrote:
>The phenomenon of creating code that are inefficient is proportional
>to the highlevelness or power of the lang. In general, the higher
>level of the lang, the less possible it is actually to produce a code
>that is as ef
2008-12-08
Xah Lee wrote:
> > Also, in this discussion, thanks to Thomas M Hermann's $20 offered to
> > me for my challenge to you, that i have taken the time to show working
> > code that demonstrate many problems in your code.
A moron, wrote:
> You failed the challenge that you were given.
yo
Xah Lee wrote:
> Also, in this discussion, thanks to Thomas M Hermann's $20 offered to
> me for my challenge to you, that i have taken the time to show working
> code that demonstrate many problems in your code.
You failed the challenge that you were given. Specifically, your code is not
measurabl
On Dec 8, 5:10 am, Jon Harrop <[EMAIL PROTECTED]> wrote:
> Xah Lee wrote:
> > For those interested in this Mathematica problem, i've now cleaned up
> > the essay with additional comments here:
>
> > • A Mathematica Optimization Problem
> > http://xahlee.org/UnixResource_dir/writ/Mathematica_optimi
Xah Lee wrote:
> For those interested in this Mathematica problem, i've now cleaned up
> the essay with additional comments here:
>
> • A Mathematica Optimization Problem
> http://xahlee.org/UnixResource_dir/writ/Mathematica_optimization.html
In that article you say:
> Further, if Intersect is
Xah Lee wrote:
> The result and speed up of my code can be verified by anyone who has
> Mathematica.
You changed the scene that is being rendered => your speedup is bogus!
Trace the scene I originally gave and you will see that your program is no
faster than mine was.
--
Dr Jon D Harrop, Flying
[EMAIL PROTECTED] wrote:
> Well, its past 'tonight' and 6 hours to go till past 'tomorrow'.
> Where the hell is it Zah Zah?
Note that this program takes several days to compute in Mathematica (even
though it takes under four seconds in other languages) so don't expect to
see a genuinely optimized
For those interested in this Mathematica problem, i've now cleaned up
the essay with additional comments here:
• A Mathematica Optimization Problem
http://xahlee.org/UnixResource_dir/writ/Mathematica_optimization.html
The result and speed up of my code can be verified by anyone who has
Mathema
Xah Lee wrote:
> I didn't realize until after a hour, that if Jon simply give numerical
> arguments to Main and Create, the result timing by a factor of 0.3 of
> original. What a incredible sloppiness! and he intended this to show
> Mathematica speed with this code?
>
> The Main[] function calls Cr
On Dec 4, 6:09 pm, [EMAIL PROTECTED] wrote:
> For the interested, with MMA 6, on a Pentium 4 3.8Ghz:
>
> The code that Jon posted:
>
> Timing[Export["image-jon.pgm", [EMAIL PROTECTED]@Main[2, 100, 4]]]
> {80.565, "image-jon.pgm"}
>
> The code that Xah posted:
>
> Timing[Export["image-xah.pgm", [EMA
Xah Lee wrote:
alright, here's my improved code, pasted near the bottom.
let me say a few things about Jon's code.
If we rate that piece of mathematica code on the level of: Beginner
Mathematica programer, Intermediate, Advanced, where Beginner is
someone who just learned tried to program Mathe
alright, here's my improved code, pasted near the bottom.
let me say a few things about Jon's code.
If we rate that piece of mathematica code on the level of: Beginner
Mathematica programer, Intermediate, Advanced, where Beginner is
someone who just learned tried to program Mathematica no more t
On Wed, 3 Dec 2008 16:32:57 -0800 (PST), Xah Lee <[EMAIL PROTECTED]> wrote:
>On Dec 3, 4:22 pm, "Thomas M. Hermann" <[EMAIL PROTECTED]> wrote:
>> On Dec 3, 5:26 pm, Xah Lee <[EMAIL PROTECTED]> wrote:
>>
>>
>>
>> > Agreed. My paypal address is xah @@@ xahlee.org. (replace the triple
>> > @ to sin
2008/12/4 Kaz Kylheku <[EMAIL PROTECTED]>:
> Really? I will trade you one Xah Lee for three Jon Harrops and I will even
>
Xah Lee is interesting because he brings up lots of good points. Also,
the few times we've seen his skilz he has shown that he really knows
how to code. I am willing to put up
You think the posts are bad... check out his web site...
Just don't go to every page on the Xah website - some of his stuff is
NSFW (Not Safe For Work).
--
http://mail.python.org/mailman/listinfo/python-list
Andreas Waldenburger wrote:
On Wed, 03 Dec 2008 20:38:44 -0500 Lew <[EMAIL PROTECTED]> wrote:
Xah Lee wrote:
enough babble ...
Good point. Plonk. Guun dun!
I vaguely remember you plonking the guy before. Did you unplonk him in
the meantime? Or was that just a figure of speech?
I have h
On Wed, 03 Dec 2008 20:38:44 -0500 Lew <[EMAIL PROTECTED]> wrote:
> Xah Lee wrote:
> > enough babble ...
>
> Good point. Plonk. Guun dun!
>
I vaguely remember you plonking the guy before. Did you unplonk him in
the meantime? Or was that just a figure of speech?
teasingly yours,
/W
--
My r
Kaz Kylheku <[EMAIL PROTECTED]> wrote:
>On 2008-12-04, Jürgen Exner <[EMAIL PROTECTED]> wrote:
>> toby <[EMAIL PROTECTED]> wrote:
>>>On Dec 3, 4:15 pm, Xah Lee <[EMAIL PROTECTED]> wrote:
On Dec 3, 8:24 am, Jon Harrop <[EMAIL PROTECTED]> wrote:
> My example demonstrates several of Ma
On 2008-12-04, Jürgen Exner <[EMAIL PROTECTED]> wrote:
> toby <[EMAIL PROTECTED]> wrote:
>>On Dec 3, 4:15 pm, Xah Lee <[EMAIL PROTECTED]> wrote:
>>> On Dec 3, 8:24 am, Jon Harrop <[EMAIL PROTECTED]> wrote:
>>>
>>> > My example demonstrates several of Mathematica's fundamental limitations.
>>>
>>>
toby <[EMAIL PROTECTED]> wrote:
>On Dec 3, 4:15 pm, Xah Lee <[EMAIL PROTECTED]> wrote:
>> On Dec 3, 8:24 am, Jon Harrop <[EMAIL PROTECTED]> wrote:
>>
>> > My example demonstrates several of Mathematica's fundamental limitations.
>>
>> enough babble Jon.
>>
>> Come flying $5 to my paypal account, an
On Dec 3, 4:15 pm, Xah Lee <[EMAIL PROTECTED]> wrote:
> On Dec 3, 8:24 am, Jon Harrop <[EMAIL PROTECTED]> wrote:
>
> > My example demonstrates several of Mathematica's fundamental limitations.
>
> enough babble Jon.
>
> Come flying $5 to my paypal account, and i'll give you real code,
I'll give yo
On Dec 2, 5:04 pm, Tamas K Papp <[EMAIL PROTECTED]> wrote:
> On Tue, 02 Dec 2008 13:57:35 -0800, Lew wrote:
> > Xah Lee wrote:
> >> If [yo]u would like to learn [the] [E]nglish lang[uage] and writing
> >> insights from me, peruse:
>
> > /Au contraire/, I was suggesting a higher standard for your po
"Xah Lee" <[EMAIL PROTECTED]> wrote:
>Chances are, $10 is not enough for me to take the
>trouble of disappearing from the face of this earth.
What a pity.
It would be cheap at the price.
- Hendrik
--
http://mail.python.org/mailman/listinfo/python-list
Xah Lee wrote:
enough babble ...
Good point. Plonk. Guun dun!
--
Lew
--
http://mail.python.org/mailman/listinfo/python-list
On Dec 3, 4:22 pm, "Thomas M. Hermann" <[EMAIL PROTECTED]> wrote:
> On Dec 3, 5:26 pm, Xah Lee <[EMAIL PROTECTED]> wrote:
>
>
>
> > Agreed. My paypal address is “xah @@@ xahlee.org”. (replace the triple
> > @ to single one.) Once you paid thru paypal, you can post receit here
> > if you want to, or
On Dec 3, 5:26 pm, Xah Lee <[EMAIL PROTECTED]> wrote:
> Agreed. My paypal address is “xah @@@ xahlee.org”. (replace the triple
> @ to single one.) Once you paid thru paypal, you can post receit here
> if you want to, or i'll surely acknowledge it here.
>
> Here's what i will do:
>
> I will give a v
> I'll pay $20 to see your improved version of the code. The only
> references to PayPal I saw on your website were instructions to direct
> the payment to [EMAIL PROTECTED], please let me know if that is correct.
>
> What I want in return is you to execute and time Dr. Harrop's original
> code, po
Xah Lee wrote:
> Come flying $5 to my paypal account, and i'll give you real code,
> amongest the programing tech geekers here for all to see.
That's the problem with Mathematica - it's so expensive that you even
have to pay for simple benchmark programs.
--
http://mail.python.org/mailman/listinfo
On Dec 3, 3:15 pm, Xah Lee <[EMAIL PROTECTED]> wrote:
> On Dec 3, 8:24 am, Jon Harrop <[EMAIL PROTECTED]> wrote:
>
> > My example demonstrates several of Mathematica's fundamental limitations.
>
> enough babble Jon.
>
> Come flying $5 to my paypal account, and i'll give you real code,
> amongest th
On Dec 3, 8:24 am, Jon Harrop <[EMAIL PROTECTED]> wrote:
> My example demonstrates several of Mathematica's fundamental limitations.
enough babble Jon.
Come flying $5 to my paypal account, and i'll give you real code,
amongest the programing tech geekers here for all to see.
I'll show, what kind
[EMAIL PROTECTED] wrote:
So when you need an algorithm, you can often find it already inside,
for example in the large Combinatorics package. So it has WAY more
batteries included, compared to Python. I'd like to see something as
complete as that Combinatorics package in Python.
Sage (http
Xah Lee wrote:
> On Dec 2, 5:13 pm, Jon Harrop <[EMAIL PROTECTED]> wrote:
>> The Mathematica code is 700,000x slower so a 50% improvement will be
>> uninteresting. Can you make my Mathematica code five orders of magnitude
>> faster or not?
>
> Pay me $10 thru paypal, i'll can increase the speed so
George Sakkis wrote:
As a Slashdotter would put it... you must be new here ;-)
For certain values of "here". I've seen Xah before, and I'm happy to engage
if he behaves himself. Some of his initial ideas I actually find engaging.
His followups leave a lot to be desired.
f/u set to comp.la
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