Hello.
You're more than welcome to try replacing code cells with the current
CodeMirror, for example, and evaluating how fast/reliable the notebook is
then. Then please report your findings here, of course.
Where I can do that ? Which file in
Thanks.
I'll try to do this as soon as possible.
C.
2011/7/2 Jason Grout jason-s...@creativetrax.com
On 7/2/11 4:28 AM, Christophe BAL wrote:
Hello.
You're more than welcome to try replacing code cells with the
current CodeMirror, for example, and evaluating how fast/reliable
Hello,
how do Sage analyse the rafters in ratpoly.t = PolynomialRing(QQ) ? Where
I could find the method used in the source of Sage ?
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Hello,
I would like to know how Sage calls Maxima from Python ? Which files have I
to look for in the source ?
Best regards.
Christophe
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Thanks a lot for this informations.
Christophe.
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Hello,
what is the easiest way to linearize cos(x)^3 ?
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Thanks a lot.
Christophe
2011/12/13 achrzesz achrz...@wp.pl
sage: (cos(x)^3).reduce_trig()
1/4*cos(3*x) + 3/4*cos(x)
On Dec 13, 7:45 pm, Christophe BAL projet...@gmail.com wrote:
Hello,
what is the easiest way to linearize cos(x)^3 ?
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Hello,
the following command has a very bad output.
plot(sqrt((x - 2)*(x - 1)), (-4, 5)) + plot(-sqrt((x - 2)*(x - 1)), (-4, 5))
How can I ameliorate this ?
Best regards.
Christophe
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Thanks for this.
This kind of example should appear in the tutorial of the documentation.
Best regards.
Christophe.
2011/12/31 achrzesz achrz...@wp.pl
On Dec 31, 11:21 am, Christophe BAL projet...@gmail.com wrote:
Hello,
the following command has a very bad output.
plot(sqrt((x - 2
Hello.
You could try to do one substitution before the printing.
Christophe.
2012/5/5 TNick nicu.to...@gmail.com
Hello!
I see that is possible to rename() a symbol. But is it possible to
customise the (latex) output?
say:
sage: x = PolynomialRing(QQ, 'x', sparse=True).gen()
sage: g =
Hello,
have you see this page : http://mathworld.wolfram.com/PiDigits.html ?
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Sorry for the link, indeed I not really read the page.
Indeed, there is one algorithm for the 2 base case :
http://en.wikipedia.org/wiki/Bailey%E2%80%93Borwein%E2%80%93Plouffe_formula.
I don't know any kind of this algorithm for the 10 base case.
I really think that your question will need a
What I think very confusing is that 1/4 is the Sage division and not the
Python standard one, so why it would be different for randint ?
I'm a teacher and the problem is not from my point of view but it will be a
tricky thing to explain to my students which are in french lycée (sorry,
I don't
Hello,
what is the way to implement folder ? Is it only a JS-HTML feature, or not ?
Christophe
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Hello,
I would like to share my worksheet with mys students so as then can copy or
use
my codes. But I do not want that they can change my codes. Is it possible ?
Christophe.
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Hello.
I've met the same problem today.
Christophe.
2012/10/16 Alberto Fernandez alb...@gmail.com
Hi
Since yesterday we are trying to work with sage on the www.sagenb.org
server and don´t performs calculations. Is this server down? Are our PC´s
wrong?
Thanks
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For my part, evaluation always freezes.
2012/10/16 kcrisman kcris...@gmail.com
On Tuesday, October 16, 2012 8:07:38 AM UTC-4, projetmbc wrote:
Hello.
I've met the same problem today.
Christophe.
2012/10/16 Alberto Fernandez alb...@gmail.com
Hi
Since yesterday we are trying to
Hello,
I would like to draw a kind of inverse Newton polygon for points.
How can I achieve this ?
Christophe
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Ok, there is an applet showing on example of the Newton polygon here :
http://www.math.sc.edu/~filaseta/newton/newton.html
Don't focus on the definition of the Newton polygon but only on the graphic.
What I need to obtain is a similar result but from the upper point of
viex, and the lower one.
Hello.
One method could be the following one where *L* is a list of points. We
note *xMin* and *xMax* the smallest and biggest abscissa respectively.
1. Add two extra points *(xMin , -inf)* and *(xMax , -inf)* to the list *
L*. We obtain the list *L**L*.
2. Compute the convex hull of
Tanks.
I don't like the output produced via *q.plot()*. Is there a way to obtain
one basic line like *line* does ?
Christophe
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Thanks for this. [?]
2012/10/22 Volker Braun vbraun.n...@gmail.com
You can always roll your own if you don't like it. You can also try to
take apart the pieces that do the plot, for example,
sage: proj = sage.geometry.polyhedron.plot.Projection(q)
sage: proj.render_outline_2d(color='red')
Hello,
the following code takes more than one minute to acheive its job.
Is there some technical problem with the server ?
Christophe
Simple code =
def pgcdBoucle(a, b):
n = 0
if b a:
a, b = b, a
while(b != 0):
a, b = b, a%b
n += 1
return
Happy to find one bug. [?]
Christophe
2012/10/29 Jason Grout jason-s...@creativetrax.com
On 10/29/12 2:41 PM, William Stein wrote:
On Mon, Oct 29, 2012 at 12:26 PM, Christophe BAL projet...@gmail.com
wrote:
Hello,
the following code takes more than one minute to acheive its job
Hello.
There is no general method : see this page
http://mathworld.wolfram.com/DiophantineEquation.html
Best regards.
C.
2012/12/8 Robert Dodier robert.dod...@gmail.com
Hello, is there a way to solve Diophantine equations in Sage? If not a
general method, perhaps at least some special
Hello,
in the following code I would like to replace x with T in Delta_X so as to
illustrate
the Cayley Hamilton theorem by doing everything by hands.
Is it possible ?
Best regards.
Christophe BAL
=
var('a b c d e f')
T = matrix([
[a, b, c],
[0, d, e],
[0, 0
Hello,
I would like to know if there is one maximal number of worksheets. It seems
to be the case for active worksheets not archived. Isn't it ? What about the
archived worksheets.
Best regards.
Christophe
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by hands.
Is it possible ?
Best regards.
Christophe BAL
=
var('a b c d e f')
T = matrix([
[a, b, c],
[0, d, e],
[0, 0, f]
])
T_X = T - x*identity_matrix(3)
Delta_X = det(T_X)
I can't get that to work. However, this does: treat the variables
Hello,
I would like, if it is possible, to calculate the formal power of one
matrix ?
My attempt is after but it doesn't work... :-(
Christophe
==
var('n')
assume(n, 'integer')
E = matrix([
[0 , 1 , 0 , 0 , 0 ],
[1/4 , 0 , 3/4 , 0 , 0 ],
[0 ,
You're right !
Sorry for my spam.
Christophe
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@Jason : thanks for the trick !
2013/1/24 Christophe BAL projet...@gmail.com
You're right !
Sorry for my spam.
Christophe
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I'm curious to see this output. Can you send it ?
2013/1/24 Stephen Montgomery-Smith step...@missouri.edu
On 01/24/13 08:57, Christophe BAL wrote:
Hello,
I would like, if it is possible, to calculate the formal power of one
matrix ?
My attempt is after but it doesn't work
Hello,
it could be very useful for undergraduate students to have a light version
of sage so as to not have such a huge program to install.
Is there anything planed around this ?
Christophe BAL
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Can I use Python with this ? Do you have one link ?
Christophe
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To post
This solution is not an off line one but it is still a good option to play
with Sage?
Christophe
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Hello,
is it possible to know which module or program is used in backstage. Why ?
As a french teacher, I'm sometimes tortured so as to inevitably use
Windows. [?]
So I would like to directly use Python packages rather than a virtual
machine
if it is possible.
Best regards.
Christophe BAL
Please, don't be so agressive.
Best regards.
Christophe
2013/2/25 Alimuddin Sheikh alimuddins...@gmail.com
pg 154 of reference ver 5.4. expand(( u + v + a + b + c)^2)
pl check the expansion. in html it's ok, but in pdf ?. a software of this
quality.
this kind of print mistake all over the
Hello,
this is more a python question that a sympy question
If L is the list [{x0:1, x1: 0, y0: 1}], then L[0] is the dictionnary
{x0:1, x1: 0, y0: 1}. Than you can try something like L[0][x0] or
L[0][x0].
Hoping that this will help you.
Best regards.
Christophe.
2013/2/26 Santanu Sarkar
Unsatisfied people can join the project and proposes one patch.
Anyone can be agressive with one commercial project but not with a free
one. That's not correct.
Christophe.
On Monday, February 25, 2013 10:56:31 AM UTC-5, projetmbc wrote:
Please, don't be so agressive.
Indeed.
So, it
Hello,
what is the best solution(s) to use Sage online ?
Christophe
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To
+1
2013/6/7 John Cremona john.crem...@gmail.com
I think you need to read a python intro to see the difference between
mutable / immutable lists and similar. This is a python question, not
really a Sage question.
John Cremona
On 7 June 2013 09:24, B. Zhang yangtz...@gmail.com wrote:
Hello,
I would like to know if it is safe to use https://cloud.sagemath.com with
high school students.
Christophe
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My question is more technical than pedagogical because I already use the
old Sage site. I will try this year hoping that I will not found big bug.
2013/9/24 William Stein wst...@gmail.com
On Sep 24, 2013 10:46 AM, Christophe Bal projet...@gmail.com wrote:
Hello,
I would like to know
I'll be happy to contribute this way.
I have a security issue question. Why do you accept creation of of new
account simply by giving an email address ? Are you not afraid of
web-robots attack ?
2013/9/24 William Stein wst...@gmail.com
On Sep 24, 2013 11:11 AM, Christophe Bal projet
Hello,
how can I share my project to other persons ?
Christophe
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Indeed, I would like to show my codes to my students in read-only mode.
I hope that will be possible soon.
Christophe
Le 27 sept. 2013 17:35, Harald Schilly harald.schi...@gmail.com a
écrit :
On Friday, September 27, 2013 2:07:37 PM UTC+2, projetmbc wrote:
Hello,
how can I share my
Great fro the future.
2013/9/27 William Stein wst...@gmail.com
On Fri, Sep 27, 2013 at 9:22 AM, Christophe Bal projet...@gmail.com
wrote:
Indeed, I would like to show my codes to my students in read-only mode.
I hope that will be possible soon.
It will be. I've just had
Hello,
when I download a Sage sheet containing one plot, I do not have the picture
output corresponding to the plot.
Indeed, I will type one Python code so as to build a LaTeX from my Sage
codes. Without the picture output, I will have to recall the Sage code
locally. No so hard to do but it will
Hello,
the following code prints
*21**(x^2 + 2*x)/(28*x^2 - 3*x - 40)
but I would simply like to have
(21*x^2 + 42*x)/(28*x^2 - 3*x - 40)
Can I acheive this ?
Best regards.
C.
=== CODE ===
param = []
for i in range(8):
param.append(randint(-10,10))
num(x) = (param[0]*x -
*Hello,*
*here are some bugs and suggestions.*
*
*
*Best regards.*
*Christophe which is a real fan of Sagemath Cloud.*
*=*
*BUG 1*
*=*
*
*
*When I rename a Sage worksheet, its content is erased.*
*
*
*=*
*BUG 2*
*=*
*
*
*I can't download directly all the content of one fold.*
*
even if it
is not preceded by a print function, but I do not see a reason to print all
intermediate alone strings.
Best regards.
Christophe BAL
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All of this looks good.
Thanks.
Christophe
Le 6 oct. 2013 01:03, William Stein wst...@gmail.com a écrit :
On Sat, Oct 5, 2013 at 3:51 PM, Christophe Bal projet...@gmail.com
wrote:
Hello.
I will try to be clearer. Sorry for my english, I'm a french frog
Thanks for the way to translate the pseudo url to a real one. That is
exactly wath I'm looking for.
Christophe.
PS : it's a real pleasure to use the interface of SageMath Cloud ! :-)
2013/9/27 William Stein wst...@gmail.com
On Fri, Sep 27, 2013 at 9:37 AM, Christophe Bal projet...@gmail.com
Hello,
this is certainly a bug. The error comes from (a/s**2).is_polynomial(s).
Christophe
2013/10/17 Alessandro Bernardini alessandro.bernardini@gmail.com
sage: s, a, b= var('s a b')
sage: (1/s^2 + s).is_polynomial(s)
False
sage: (a/s^2 + b*s).is_polynomial(s)
True
sage:
Hello,
I think also that there is a problem.
More simply, something like
--
var('a')
plot(a^2==3,a,1,7)
--
should work like
---
var('a')
plot(bool(a^2==3),a,1,7)
---
But the plot
Hello,
here is a way to draw several functions on the same graphic.
myFamily = plot(0, x, 1, 7)
for a in range(1, 10):
myFamily += plot(a*x^2+2, x, 1, 7)
show(myFamily)
I find this
Hello.
I think that is not good to have an error with the following code.
for i in range(10):
# Here is a basic comment...
print i, --, i**2
The error due to the comment is the following one.
Error in lines
Indeed, I'm french with a more or less knowledge of english... ;-) I was
just thinking of stacking one curve upon another.
Your proposition is the one I was looking for.
Thanks.
Christophe
2013/11/3 Nils Bruin nbr...@sfu.ca
On Sunday, November 3, 2013 2:22:05 AM UTC-8, projetmbc wrote:
Thanks for the reactivity. I have no time today to implement this but
indeed it is a very simple task to do. If no one gives you something, I can
try to adapt your code. Just tell us in this discussion if someone has done
the job.
For my part, I could only look at this this french thursday.
Best
Quickly, what are the functions to change ? What is the feature wanted for
parsing.py ? This will help me to try to improve your code.
2013/11/3 Christophe Bal projet...@gmail.com
Thanks for the reactivity. I have no time today to implement this but
indeed it is a very simple task to do
at that thursday.
2013/11/3 Christophe Bal projet...@gmail.com
Quickly, what are the functions to change ? What is the feature wanted for
parsing.py ? This will help me to try to improve your code.
2013/11/3 Christophe Bal projet...@gmail.com
Thanks for the reactivity. I have no time today
an
optional parameter.
2013/11/3 Christophe Bal projet...@gmail.com
Sorry for my question because William wrote :
*The relevant function is divide_into_blocks in parsing.py, which I've
attached to this email, in case anybody wants to fix it for me, since
people like Robert Bradshaw and you
Hello.
The use of AST is a pretty way BUT you must not use *eval* or
*exec*because of real security issues. It's easy to find explanations
about that
on the web.
Christophe
2013/11/3 Nils Bruin nbr...@sfu.ca
On Sunday, November 3, 2013 12:42:04 PM UTC-8, Nils Bruin wrote:
Note that you
Indeed there are small security problems and big ones. The use of eval or
exec can cause real big problems. I'll try to show that in private. Not
here... I'm not sure to do such a hack but if the actual version uses exec
or eval, it would be possible.
My remark is just to help and not to
Thanks. Where all of this I'd implemented ?
Le 4 nov. 2013 15:20, William Stein wst...@gmail.com a écrit :
On Mon, Nov 4, 2013 at 6:04 AM, Christophe Bal projet...@gmail.com
wrote:
Indeed there are small security problems and big ones. The use of eval or
exec can cause real big problems
Hello,
I would do it like that. I think that in the question the 0! must be change
to 1!.
_ =
S = u_1*(n - 1)! + u_2*(n - 2)! + ... + u_{n - 2}*2! + u_{n - 1}*1!
S = [[ ... [[u_1*(n - 1) + u_2]*(n - 2)] + ... + u_{n - 2}] ... ]]*2 +
u_{n - 1}
def factrep(S):
ans = []
d = 2
Hello,
I've just tried to print one code using the print option and I have some
suggestions about this.
1. The formatting should be a little enhance so as to be print in black
and white. Simple captions can do this job.
2. Indicates the code with line numbered can be useful so as to
I do not know that there is such a list.
Thanks for pointing this.
C.
2014/1/14 John Cremona john.crem...@gmail.com
Perhaps you meant to email the sage-cloud mailing list?
John Cremona
On 14 January 2014 09:55, Christophe Bal projet...@gmail.com wrote:
Hello,
I've just tried to print
Hello.
Can you give a small example of your matrices ?
Christophe.
2014-02-27 20:40 GMT+01:00 Volker Braun vbraun.n...@gmail.com:
Its not clear what you mean by permutation, row? column? both? In any
case, sorting is faster than trying all permutations.
On Thursday, February 27, 2014
Hello,
if you want to work with long table-array, it could be useful to use numpy.
2014-03-06 22:19 GMT+01:00 geo909 gtzana...@gmail.com:
I finally decided to use the csv goodies of python as described here:
http://docs.python.org/2/library/csv.html
On Thursday, March 6, 2014 11:56:22 AM
Hello.
This is certainly due to the way Python manages unhashable variables. If
you type p6 is c6, you will obtain True, in other words, p6 and c6 are two
references to the same object.
Using p6=c6.copy() will do the job.
Best regards.
Christophe BAL
2014-03-12 21:42 GMT+01:00 Ken Levasseur
Hello,
you have to learn Python a little before using Sage.
In Python you just have while and for loops.
What kind of repeat loop do you want to do ?
Christophe BAL
2014-03-18 21:57 GMT+01:00 etienne mann etienne.m...@gmail.com:
Hi,
I did not find a reference for programing a repeat loop
==[];
Le mardi 18 mars 2014 22:01:17 UTC+1, projetmbc a écrit :
Hello,
you have to learn Python a little before using Sage.
In Python you just have while and for loops.
What kind of repeat loop do you want to do ?
Christophe BAL
2014-03-18 21:57 GMT+01:00 etienne mann etienn...@gmail.com
Instead of *not(S == [])*, Python allows to simply use *not S*, and instead
of *not(r == 0)* you can use *r != 0*, and lastly instead of *S = S + [r]* you
can use *S.append(r)*, or *S += [r]* if you do not want to use OOP.
Christophe BAL
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Hello,
this is an english list.
Christophe BAL
French PS: il va falloir traduire en anglais votre question.
2014-03-19 21:26 GMT+01:00 ghammamlou...@gmail.com:
Bonsoir
SVP, j'ai besoin de definir sur Sage 3 extensions de corps, mais je
n'arrive pas. Je peux definir que deux extensions
Indeed you are talking about field extensions and not about bubonic body
extensions.
This is just French humor. ;-)
Le 20 mars 2014 01:13, Anton Sherwood bro...@pobox.com a écrit :
On 2014-3-19 13:26, ghammamlou...@gmail.com wrote:
Bonsoir
SVP, j'ai besoin de definir sur Sage 3 extensions de
Hello.
I do not think that is really a convention, but it is very logical because
1.1 can also be a float result given by Python. But floats and decimals are
not the same due to the ways operators act on them.
Christophe BAL
Le 28 mars 2014 10:34, Ralf Stephan gtrw...@gmail.com a écrit :
I
Your last comment is good.
Maybe you can use Decimal(1.1) to avoid confusion.
Le 28 mars 2014 10:57, Ralf Stephan gtrw...@gmail.com a écrit :
On Friday, March 28, 2014 10:39:10 AM UTC+1, projetmbc wrote:
I do not think that is really a convention, but it is very logical
because 1.1 can also
Hello.
I do not think this is necessary for Sage sheets and IPython.
Indeed, for more advanced features, there is a real need but this problem
has been already evokated in this mailing list.
Best regards.
Christophe
Le 5 mai 2014 16:52, kcrisman kcris...@gmail.com a écrit :
On Monday, May
Thanks a lot.
Christophe BAL
2014-08-14 10:14 GMT+02:00 John Cremona john.crem...@gmail.com:
When William Stein first started the project it was an acronym SAGE
for (I think) System for Algebra and Geometry Experimentation. But
soon it became a much wider project (mathematically) than
Thanks fo this link that I have not yet read by laziness. I will do it soon.
Christophe BAL
2014-08-15 5:30 GMT+02:00 Robert Bradshaw rober...@gmail.com:
http://sagemath.blogspot.com/2009/12/mathematical-software-and-me-very.html
On Thu, Aug 14, 2014 at 1:14 AM, John Cremona john.crem
Hello.
Under Ubuntu 14, the latest version 6.3 contains some files not goood EOF.
Best regards.
Christophe BAL
PS : Here is the error message with all the files concerned.
---
EOFError
Yes, that's it.
Christophe BAL
Le 16 août 2014 14:58, Dima Pasechnik dimp...@gmail.com a écrit :
On 2014-08-16, Christophe Bal projet...@gmail.com wrote:
--089e013cba22d420490500bb2fa6
Content-Type: text/plain; charset=UTF-8
Hello.
Under Ubuntu 14, the latest version 6.3 contains
A failure ? Why ?
Le 27 août 2014 13:37, Nathann Cohen nathann.co...@gmail.com a écrit :
Please consider adding on Python mainstream webpage some info about Sage
project. It was a great idea to choose Python as a main programming
language to implement Sage project.
So I think that python and
Hello.
I would to do two thinks.
1. Know the number of decimal digits that Sage uses in a program.
2. Choose the number of decimal digits displayed.
Sorry for this unformal question.
Christophe BAL
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Thanks for all !!!
Christophe BAL
2014-09-10 17:38 GMT+02:00 William A Stein wst...@uw.edu:
On Wed, Sep 10, 2014 at 8:24 AM, Jeroen Demeyer jdeme...@cage.ugent.be
wrote:
On 2014-09-10 17:18, William A Stein wrote:
RR is pre-defined to be
RealField(53), and overwriting that might cause
Hello.
Is there a ready ti use function that can give a truncated version of the
representation in base 2 of a decimal number ?
This is only to explain why print(0.1 + 0.3) fails with Python3.
Christophe
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Sometime the monkey looks at the moon instead of the finger.
Sorry for this not-a-question of the weekend.
Thanks.
2014-09-14 16:13 GMT+02:00 William A Stein wst...@uw.edu:
On Sun, Sep 14, 2014 at 3:01 AM, Christophe Bal projet...@gmail.com
wrote:
Hello.
Is there a ready ti use
of the
approximation of 0.1 + 0.2.
What I'm doing wrong in my investigations ?
Christophe BAL
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No need to go deeper in a technical article. I will give a very elementary
explanation later here (now I do not have the time to type this).
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Hello,
I used a long time ago a website where I can put piece of Sage code that
could be visible by anyone without having to open an account. The problem
is that I do not remember the url of this website.
Dos someone sees which website I'm talking about ?
Christophe BAL
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You received
The problem with gist is that you can't play with the code. The website I
used allow external user to play with the code like in
http://sagecell.sagemath.org/ .
2014-09-16 12:17 GMT+02:00 Dima Pasechnik dimp...@gmail.com:
On 2014-09-16, Christophe Bal projet...@gmail.com wrote:
Hello,
I
Hello.
Is it possible to ask to sage to give formulas for simple recursive
sequences ?
For example, *w_{n+1} = (n+1)/n*w_n + 1/n* with *w_0 = 1* , we have *w_n
= 2 n + 1* . More simple example could be arithmetico-geometrical sequences
*w_{n+1} = a*w_n + b* .
Christophe BAL
--
You
* . More simple example could be arithmetico-geometrical
sequences *w_{n+1} = a*w_n + b* .
Christophe BAL
Brief answer which I think others can expand upon - I believe both Maxima
and Sympy can do so inside Sage, though I don't know that we have a good
interface to those capabilities yet
This examples gives value for known n, what I'm looking for is a general
formula with a symbolic n.
For arithmetico-geometrical sequences, my purpose is more pedagogical than
practical.
2014-09-25 22:38 GMT+02:00 Jorge Garcia calcp...@gmail.com:
Also, geometric and arithmetic sequences need
a formula to a serie
sum(k=0 ; n ; w_k) where w_k is at least hypergeometric.
2014-09-25 22:46 GMT+02:00 Christophe Bal projet...@gmail.com:
This examples gives value for known n, what I'm looking for is a general
formula with a symbolic n.
For arithmetico-geometrical sequences, my purpose is more
Hello.
You can use .sagews file.
Christophe
2014-09-26 13:45 GMT+02:00 martinchan2...@gmail.com:
How to paste code for quick rather than type code in terminal in sage cloud
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Hello.
What am I doing wrong in the following code that display everything in blue
?
Christophe
--
graphic = plot(x**2-3, xmin=0, xmax=4, ymin=-3, ymax=13)
graphic += plot(line([(0, 0), (0, -3)]), color='red', linestyle=--)
graphic += plot(line([(4, 0), (4, 13)]), color='red',
([(0,0),(3,4)], color='red')
sage: graphics.show()
Vincent
2014-09-28 12:43 UTC+02:00, Christophe Bal projet...@gmail.com:
Hello.
What am I doing wrong in the following code that display everything in
blue
?
Christophe
--
graphic = plot(x**2-3, xmin=0, xmax=4, ymin=-3
Yes you're right but indeed I was thinking like a matplotlib.
Le 28 sept. 2014 19:34, William A Stein wst...@uw.edu a écrit :
On Sun, Sep 28, 2014 at 3:43 AM, Christophe Bal projet...@gmail.com
wrote:
Hello.
What am I doing wrong in the following code that display everything in
blue
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