"
My question is: which component am I using?
I am doing the following:
x, y, z = var('x, y, z')
factor(x^6+y^6)
factor(x^6-y^6)
expand((3*x^2+y^2)*(x^2+3*y^2))
and similar.
Platform: macOS 12.5.1
SageMath version 9.4, Release Date: 2021-08-22
Thank you
Georg
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Thanks a lot, Simon!
Georg
On Wednesday, June 3, 2015 at 4:33:48 AM UTC+2, Simon King wrote:
Hi Georg,
On 2015-06-02, ggrafendorfer georg.gra...@gmail.com javascript:
wrote:
sage: g(x) = x^2 - 26*x -9
sage: g.factor()
x^2 - 26*x - 9
First of all, what you create
the commands automatically into Sage.
+1
There should be a directory edu here:
SAGE_ROOT/devel/sage/sage
Right now, there isn't.
What can i do to put e.g. a function showsteps_det() in the
directory SAGE_ROOT/devel/sage/sage?
Georg
I have also something similar - commands which can be used
these in a modul for
educational purposes. Wolfram alpha does that e.g. for derivatives
(More steps).
What do you think about this?
Georg
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+= ' + '
res += ']'
from sage.misc.latex import LatexExpr
return LatexExpr(res)
and when you call \sage{sarrus(A)}, you must put in between
dollar signs. Feel free to ask further if it doesn't solve your
problem !
Thanks, that is exactly what i was looking for.
Georg
On 6 mai
kind of (typewriter-)enviroment. After some
experimentation i found a possible solution is to replace \cdot
with $\cdot$. It doesn't look nice, but better than before.
Georg
On 5 mai, 11:28, Dr. Georg Damm georg.d...@web.de wrote:
Hi all,
i've written a function to explain the rule
Hi all,
i've written a function to explain the rule of sarrus. Is there a
possibility to return latex code insted of a text? I'd like to use
something like $\sage{sarrus(A)}$ in sagetex.
Thanks a lot,
Georg
P.S.: I expirimented with JSMathExpr from sage.misc.latex, but i
couldn't improve
Am Dienstag, 30. März 2010 19:09:32 schrieb Harald Schilly:
On Mar 30, 6:51 pm, Dr. Georg Damm georg.d...@web.de wrote:
is there a way to use beamer overlays ( includegraphics3-...
) with sageplot?
Hi, could you please elaborate a bit more what you try to
accomplish? Which sageplot
Am Dienstag, 30. März 2010 19:09:32 schrieb Harald Schilly:
On Mar 30, 6:51 pm, Dr. Georg Damm georg.d...@web.de wrote:
is there a way to use beamer overlays ( includegraphics3-...
) with sageplot?
Hi, could you please elaborate a bit more what you try to
accomplish? Which sageplot
is ignored.
* Do you have any reason to insert png graphics? Vector graphics
would produce much better result.
Thanks for the hint. (It' a relict of the 3d-plots in this chapter).
[...]
Georg
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* Does \visible help?
No.
I was wrong. Tried it again in a new tex-file and it solved my
problem.
Sorry for the noise.
Georg
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Hi,
is there a way to use beamer overlays ( includegraphics3-... )
with sageplot?
Georg
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Hi!
a sage (4.3.3) notebook shows the correct picture of
plot(x^2-5,(x,0,5),ymin=0)
The save method ignores the ymin parameter:
plot(x^2-5,(x,0,5),ymin=0).save(/tmp/test.png)
Is this a bug or a feature?
Georg
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the image via the get image (or
something like that) button.
Yes, but i wondered if this could be done by sagetex. I _think_
there must be a possibility when it's possible to store the images
by hand ;)
Georg
[...]
signature.asc
Description: This is a digitally signed message part.
environment variable is then PYTHONPATH,
Georg
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Thanks Burcin,
Adding the path to SAGE_PATH works fine, that's the solution I was
looking for,
Georg
On 30 Sep., 20:22, Burcin Erocal bur...@erocal.org wrote:
Hi Georg,
On Wed, 30 Sep 2009 11:07:11 -0700 (PDT)
ggrafendorfer georg.grafendor...@gmail.com wrote:
I would like to import
A quick question: If one is given a variable name as a string s, how
can one assign a symbolic expression to it? Here is what I try that
doesn't work:
var('a b c')
s = a
eval(s + = b/c)
Traceback (most recent call last):
...
a = b/c
^
SyntaxError: invalid syntax
That definitely looks like a bug in the preparser. Do report
it to trac.
William
Do you mean that I should report it to trac?
If yes, no problem, I just never did it, no experience,
what priority?
what milestone?
shall I choose?
Georg
type of
53 Bit precision or is there a rule like coerce to the type with lower
precision and if both are of same precision coerce to the first one?
thanks, Georg
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(5. + RDF(5))' and 'sqrt(RDF(5)
+ 5.)', does sage rely on the correctnes of both implementations of
sqrt (one from gsl, one from mpfr) to be comutative?
thanks, Georg
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can't be avoided
since fixed precision reals do not form a field ...
thanks, Georg
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this:
Python 2.4.4 (#2, Apr 15 2008, 23:43:20)
[GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)] on linux2
Type help, copyright, credits or license for more information.
for x in [(k1,k2) for k1 in range(-2,3) for k2 in range(-2,3)]:
... print x
Georg
regards,
Georg.
-- Forwarded message --
Hi Georg !
Over the last few years, I have become used to the Physics Package of
Maple which enables one to use bras, kets, annihilation operators and
other objects for Physics. Is it possible to get equivalent
definitions in Sage for Physics
unfortunately does not work as one might expect at the
very first sight:
def bshow(a):
... ashow(a=a)
...
bshow(c)
a = 345.45
Georg
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There is something wrong with the order and release dates of the last
three releases of sage on
http://sage.math.washington.edu/sage/src/
and of course on all it's mirrors.
Georg
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'sage.calculus.calculus.SymbolicArithmetic'
in this case just f.diff(x) works...
Georg
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Actually, I think this would be very nice to have. (Infinite)
continued fractions pop up everywhere (I recently saw them in the
resolution of toric singularities!). Moreover, they are so easy to
understand that they also pop up in popular scientific math questions,
like at Project Euler.
So yes,
I just installed Sage 2.11 on an old computer that I upgraded to
Ubuntu Gutsy a couple of hours before. Any idea what's wrong?
[EMAIL PROTECTED]:~/Apps/sage-2.11-ubuntu32-intel-i686-Linux$ ./sage
--
| SAGE Version 2.11, Release
sage: r = matrix(SR, 4, 4, [[21,17,6,8], [-5,-1,-6,-3], [4,4,16,2],
[2,3,-4,-1]])
sage: r.exp()
.
Georg
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I did something stupid and your answer gave it away: I forgot that
that computer has an AMD Athlon inside it. Installing the Debian
Athlon binary did the job.
Thanks a lot for the very fast response. :)
On Apr 3, 6:28 pm, mabshoff [EMAIL PROTECTED]
dortmund.de wrote:
On Apr 3, 6:23 pm, Georg
planned to implement this
function anyway, thank you very much for considering my request,
Georg
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A y
.
.
Georg
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URLs
):
Is this a desired behaviour of srange??
Btw, i would appreciate a .exp() method for matrixes...
Thank you very much, Georg
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]
[0.0 0.0]
sage: matmulspyx(D)
[0.000 0.000]
[0.000 0.000]
Must be a bug, or?
thanks, Georg
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---
class 'cPickle.PicklingError' Traceback (most recent call
last)
/home/georg/.sage/temp/HILBERT/17008/
_home_georg_Daten_Sync_Software_Experimente_sage_save_savebmv_sage_0.py
in module()
4 print M
5
6 save(M, 'foo') 7
8
/home/georg/Daten/Sync
of this function
at this point, there even does not have to exist a function value at
all at this certain point, these notions (limit value and function
value) at a certain point are completely independent, so the
implementation of the function lim must not depend on the function
value.
Georg
Hi,
sage: Rational(0)^Rational(0)
---
type 'exceptions.ArithmeticError' Traceback (most recent call
last)
/home/georg/ipython console in module()
/home/georg/rational.pyx in sage.rings.rational.Rational.__pow__
'exceptions.AttributeError'Traceback (most recent call
last)
/home/georg/ipython console in module()
/home/georg/sage_object.pyx in sage.structure.sage_object.save()
type 'exceptions.AttributeError': 'list' object has no attribute
'save'
sage: save(5, './foo/foo')
sage: b = load('foo/foo')
sage: b
5
Looks like
, at least not for the most obvious
one (taking the square root of x and using .nearby_rational with
adjusted tolerance...),
may this method could be useful for others, too
Thanks, Georg
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Hi,
is there an efficient way in sage to find the smallest integer k to
meet (b constant)
b^(k+1) / (factorial(k) * factorial(k+1)) = 1
and
b^k / factorial(k) =1
or, more generally (b, c, d positive constants, c d)
b^k / (factorial(k) * (k + c - d)^d) = 1
many thanks in advance, Georg
) =1
or, more generally (b, c, d positive constants, c d)
b^k / (factorial(k) * (k + c - d)^d) = 1
many thanks in advance, Georg
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Oh yeah, that's a usefull hint,
thank you very much Paul,
Georg
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to the
sage prompt whereas /usr/bin/env sage-python brings me to the python
promp, so in OS X both commands bring you to the same prompt?
Georg
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#!/path/to/sage_root/local/bin/sage -python
gives
bash: ./exp1.sage: /home/georg/Daten/.System/bin/sage/local/bin/sage: bad
interpreter: Datei oder Verzeichnis nicht gefunden
Datei oder Verzeichnis nicht gefunden = file or directory not found,
i.e the same behauviour as without the local/bin
that #!/usr/bin/env sage -python as
first line (note the space between sage and -python) does not work on
my system (Debian Etch)...
thanks, Georg
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Hi Robert, excuse me for the response delay, i did not notice your question,
Does
#!/path/to/sage_root/local/bin/sage-python
work?
no, the output is in both cases (sage -python as well as sage-python):
bash: ./exp1.sage: /home/georg/Daten/.System/bin/sage/local/bin: bad
interpreter: Keine
OK, thanks, so sage-python just refers to the sage-version of python
instead of the systems own python version and nothing else !?
Georg
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(left or right) brings back
the shell command line prompt, no output at all, and the mouse
pointer turns to normal again...
runnin the script:
#!/path/to/sage/sage -python
a = Hello
outputs
./BMV.sage: line 2: a: command not found
the script from the tutorial, literally:
#!/home/georg
a partial solution to carry on with, but it seems
as there are still some things to clarify, especially the mouse thing
concerning the import sys
Thank you very much,
Georg
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documentation
i did'nt know that in Australia clocks are ticking the other way around :-)
i would like to encourage you to the solution with right and left, just
kernel defaulting to right as everyone (except australians) would expect.
thanks, Georg
Hi Georg,
thanks for your interest in SAGE. If you want, you can help SAGE
become part of Debian here:
http://wiki.sagemath.org/DebianSAGE
it's a lot of work and we always need more people. :)
Ondrej
Hi Ondrej,
I'm definitely prepared and encouraged to contribute concerning the
first
run
notebook.setup().
Now running notebook.setup()
Using dsage certificates.
--
Generating public/private key pair for authentication...
Your key will be stored in /home/georg/.sage/dsage/dsage_key
Just hit enter when prompted for a passphrase
Thanks for your quick respond, and
yes, both works, firefox opens a new tab with a notebook which seems
to work, i have to get used to it first...
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Thank you very much, for the time being i'm happy with this solutions,
no untrusted people around :-)
by the way, i first tried the precompiled binary 2.8.13 which did not
work:
spacemaster:/mnt/data/georg/.System/bin/sage-2.8.13-i686-Linux# ./sage
no, there was no ssh-keygen installed, after installation (on Debian
Etch ssh-keygen is provided by the package ssh-client) it works
perfectly now without options, just notebook(),
this should be annotated in the installation manual in the list of
required packages,
and the possibility
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