On Mar 7, 9:47 pm, William Stein wrote:
> With a function as *trivial* as your f above, the overhead of
> @parallel will kill your benchmark. As I explained, for *every*
> single call, an entire copy of Sage is forked off. This is no problem
> if evaluating f takes at least a second (say), but i
On 8 bře, 22:21, Rado wrote:
> PS. Work-around in the meantime, hit the "edit HTML source" button.
>
Right click in tinymce also show option to install dictionary switch
spellchecking on. Seems to work for me. Thank you.
Robert
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PS. Work-around in the meantime, hit the "edit HTML source" button.
On Mar 8, 3:17 pm, Rado wrote:
> I tried to enable the firefox build-in spellcheck by adding this
> simple
> optionhttp://wiki.moxiecode.com/index.php/TinyMCE:Configuration/gecko_spell...
> in the file ../data/sage/js/tinymce.js
I tried to enable the firefox build-in spellcheck by adding this
simple option
http://wiki.moxiecode.com/index.php/TinyMCE:Configuration/gecko_spellcheck
in the file ../data/sage/js/tinymce.js in the sagenb package. However,
it doesn't work very well, some misspelled words lose their red
underline
For numerical results you can use find_root. For example:
R. = RDF[]
f = (sin(5.0*pi*x))^6
find_root(diff((sin(5.0*pi*x))^6,x),.01,.2)
gives
0.10001
as output.
-Marshall
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On Monday 08 March 2010, John H Palmieri wrote:
> sage: R = PolynomialRing(ZZ, names=['a' + str(i) for i in range(5)] +
> ['b' + str(i) for i in range(10)])
> sage: R
> Multivariate Polynomial Ring in a0, a1, a2, a3, a4, b0, b1, b2, b3,
> b4, b5, b6, b7, b8, b9 over Integer Ring
>
> Then to define
On Mar 8, 2010, at 3:51 AM, ma...@mendelu.cz wrote:
Dear support,
do you know how to enable spelling for Sage notebooks?
I use Firefox and it checks input cells automatically, but I do not
know hot to check the text in text cells.
We don't do any spell checking, have you tried asking on tiny
On Mar 8, 7:59 am, lesshaste wrote:
> I am having problems simply defining a multivariate polynomial. I have
> a slightly modified excerpt from a very helpful python script I was
> given that looks like
>
> #!/opt/sage-4.3.3-linux-32bit-ubuntu_9.10-i686-Linux/sage -python
>
> import sys
> from sag
The problem is that Sage returns only one valua when solving sin(x)==0
and only one value, when solving cos(x) ==0. This makes only two
valuaes for equation like sin(x)*cos(x) == 0 which is similar to your
derivative.
You will have problems with solving f'(x)==0 if the derivative f'(x)
is too com
When I last used sage, I started it with sage -notebook, and my web
browser got automatically logged into the overview of the notebooks I
have created.
Recently I have upgraded my web-browser to seamonkey 2.0.3, and
now this does not work any more: An empty browser window is opened, but
the brows
Hi,
I'm new to Sage (and Python) and still have some trouble finding my
way through the documentation.
I would like to create variables with multi-indices (hence indices
are n integers (s_1,s_2,...,s_n)) and I would like to do it in such a
way that I can access these indices and do some simple
Hi Marshall,
Thank you for replaying. I do realize that this could probably be
done by hand. It is the easiest funcation that I have. But I wanted
to start with this one to get my feet wet. I have much bigger ones
like the Ackley function.
I am trying to get my head around what sage is produc
Sorry I should have said a system of multivariate polynomials.
Raphael
On Mar 8, 3:59 pm, lesshaste wrote:
> I am having problems simply defining a multivariate polynomial. I have
> a slightly modified excerpt from a very helpful python script I was
> given that looks like
>
> #!/opt/sage-4.3.3-
I am having problems simply defining a multivariate polynomial. I have
a slightly modified excerpt from a very helpful python script I was
given that looks like
#!/opt/sage-4.3.3-linux-32bit-ubuntu_9.10-i686-Linux/sage -python
import sys
from sage.all import *
from polybori.blocks import declare
That particular example is almost easier to do by hand, but one way in
Sage is:
f=(sin(5*pi*x))^6
solve(diff(f,x)==0,x)
which gives
[x == 0, x == (1/10)]
Of course there are a lot more solutions than those in this case;
those might have been chosen by taking one branch of the inverse
sine.
-M.
SageThe Sage Notebook Searching for Sage server...
Version 4.3.1
-
complex_plot(lambda z: z, (-3, 3), (-3, 3))
The color ( phase ) plot can be saved on right-clicking as sage0.png
But this image is not a 'proper' .PNG file. In fact it is an html file
which can not be disp
Dear support,
do you know how to enable spelling for Sage notebooks?
I use Firefox and it checks input cells automatically, but I do not
know hot to check the text in text cells.
Thank you
Robert Marik
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To unsubscribe from t
Some other notices:
I saved the Puppy files to HD D:
A copy to a USB -stick
renamed the files on D: because sometimes something goes wrong with shutting
down and then starting Puppy
from USB has changed (e.g. nearly all desktopitems have vanished)
So saving sage worksheets and in case of emergency
In Sage 4.3.3 and later
(2*sol).log_simplify().solve(y)
gives
[y(t) == -(e^(2*c + 2*t) + 1)/(e^(2*c + 2*t) - 1)]
You may want to rename constant:
C=var('C')
SOL=(2*sol).log_simplify().solve(y)[0]
SOL.subs(c=1/2*ln(C)).simplify_full()
y(t) == -(C*e^(2*t) + 1)/(C*e^(2*t) - 1)
Robert M.
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