>> Now to try to track down how to set jmol parameters in a web page...
I've given up for now on using Sage for this project, as it turns out
that Geogebra can accomplish what I need out of the box. For reference,
the resulting webpage is:
http://math.oregonstate.edu/bridge/ideas/fields
H
> Hopefully, some day threejs will replace jmol as the default 3d viewer:
> https://trac.sagemath.org/ticket/22408
Good, although I reiterate that it does not appear to respect the
orientation flag.
> Meanwhile, you can define a subdomain of E, U say, where the vector field
> is everywhere regul
>> You can use the plot functionality of vector fields on
>> Euclidean spaces to get better arrowheads:
OK; I can get jmol to work with some browsers, although it is painfully slow.
But the results are very nice.
>> And is there a way to disable the perspective view?
>> I want the 2d-view seen
>> You can use the plot functionality of vector fields on Euclidean
>> spaces to get better arrowheads:
Excellent! Thank you!
>> You may also replace the last line by
>> sage: show(xy, orientation=(0,0,0,0), viewer='threejs')
Yes, I had to do that -- jmol froze my browser. I haven't had a c
Thanks, Tom. So far as I can tell, your examples use "arrowsize" and
"width" to control the arrows. But so far as I can tell, those parameters
have no effect on 3d plots -- yours are all 2d. Am I missing something?
I'm using the SageMathCell server to test; not sure if that affects the
answ
Can the formatting of arrows in 3d field plots be adjusted?
I'm trying to make rotatable, 3d versions of 2d field plots.
I can get most of what I want with, say:
xy=plot_vector_field3d((x,y,0),(x,-1,1),(y,-1,1),(z,-1,1),colors='black')
show(xy,orientation=(0,0,0,0))
but I'd really like the
Let me start by confirming that I have successfully used SageManifolds
to implement the several calculations I wanted to make using the Cartan
moving frames formalism. So first a big "thank you" for developing this
code!
> If you find some missing functionalities and you would like to
> implement
>> The answer to your question is essentially "yes" ...
Thank you for your detailed response and links. I had in fact found
some of them when searching, but clearly hadn't read them carefully
enough. In particular, I had missed the use of vector_frame in the
documentation of Affine Connections,
Such an implementation would have 2 parts:
1. *Defining the objects:* The connection 1-forms, torsion 2-forms, and
curvature 2-forms are all indexed sets of differential forms. They are not
tensorial, but the index labels behave in many ways like tensor components.
In particular, there are "
>> Use the globals() Python dictionary.
Works perfectly; thanks!
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To p
How can I create variable names programmatically, then assign values to
them?
I've tried creating variables with something like
var('q'+str(n))
but my attempts to assign a value to such a variable have been unsuccessful.
The underlying problem is that I do not know in advance how many variabl
erhead when starting jupyter.
On Thursday, May 3, 2018 at 2:47:51 PM UTC-7, Nils Bruin wrote:
>
> On Thursday, May 3, 2018 at 2:32:22 PM UTC-7, Tevian Dray wrote:
>>
>> Finally had a chance to test this; yes it works -- although it is
>> apparently possible to send the two kil
Finally had a chance to test this; yes it works -- although it is
apparently possible to send the two kill commands too close together. Thank
you very much. Have to say it's a bit of a kluge, though -- the design
assumption that notebooks will always be started in shell windows that stay
open
I'm a relatively new Sage user, trying Jupyter for the first time. OS is
Ubuntu 14.04; Sage version is 8.1. Starting Jupyter from the command line
(sage -n jupyter) works as expected, but so far as I can tell the only way
to shut down the notebook server after closing the browser is via ctrl-c
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