oloid's profile - activity

And, finally, what I intended seems to be the following. (However, I still would like to know how composition of functio

The following idea seems to go in the correct direction: import scipy.stats n=20 p=0.3 binom_dist = scipy.stats.binom(n

compose (non-)symbolic functions I wonder how to compose with a non-symbolic function, or, more generally, how to compos

compose (non-)symbolic functions I wonder how to compose with a non-symbolic function, or, more generally, how to compos

Thanks Emmanuel Charpentier, I posted to sage-devel with that information having searched first if the same problem was already mentioned. Not sure whether that already constitutes "filing a ticket".

Thanks jaydfox, I will certainly give your idea a try.

I have lots of precomputed data computed by sage8.9 and before that I rely on. The reason I save that data is that it took a lot of computation time to obtain it. The data is saved as .sobj-files.

Suddenly I get "invalid pickle data"-errors when trying to load some of that data with the new version of sage. (I'm using sage9.1 now.) I am therefore unable to do computations on top of the precomputed data.

I strongly suspect that this issue is due to basing sage9.x on Python3.

How do I convert the data so that I can use it in the new version of sage?

Help is greatly appreciated.

I am trying to plot alcoves for in a rank 3 affine root system with some of those alcoves highlighted by having all faces drawn and the others only shown as a wire frame.

The manual on visualising root systems at sagemath.org is quite useful, but I have some effects show that I don't understand.

For some reason while the fundamental alcove will have all faces shown many of the others have not, that is, some faces are missing. Below you find one example code that I have done. For the chosen seq one face is missing, the red one. For other choices of seq one might even see only one face drawn. How do I force to have all faces shown?

L = RootSystem(["A",3,1]).ambient_space()
P = RootSystem(["A",3,1]).weight_space(extended=True)
Lambda = P.fundamental_weights()
W = L.weyl_group()
W0=W.classical()
plot_options = L.plot_parse_options()
seq=[2,3,1,2]  
t = 1*Lambda[1]-1*Lambda[2]+1*Lambda[3]
Alcoves=[W.from_reduced_word(w.reduced_word()) for w in W0]
p = L.plot_fundamental_chamber("classical")
p += L.plot_fundamental_weights()
p += L.plot_alcoves(alcoves=Alcoves, wireframe=True)
p += L.plot_alcoves(alcoves=[W.from_reduced_word(seq)])
p += L.plot_alcoves(alcoves=[W.from_reduced_word([])])
p += plot_options.family_of_vectors({t: L(t)})
p.show(frame=False)

Dear sage support group,

Let me start by thanking you for the recent advice which made it possible to use SageTeX with sage 4.7.1. I am so happy that I can use that.

However, after I upgraded to the new version of sage, sage 4.7.2, I can't get SageTeX to work again. I can't figure out what's wrong, and would greatly appreciate any help you might be able to give.

Here is what I did after installing sage 4.7.2 (app-version under Mac OS 10.6.8). The analogous setup worked for sage 4.7.1:
I copied the new version of the sagetex.sty-file coming with sage 4.7.2 to the folder ~/Library/texmf/tex/generic/sagetex/ and updated the call of sage in the sage.engine of TeXShop (the path to the application is correct, because it will start sage in a Terminal session).

With the new setup, according to the log file of TeXShop, sage is called when running the sage.engine of TeXShop, but still none of the output sage should produce for the example.tex-file provided is shown. Instead there are question marks. As might be expected one gets also lots of LaTeX warnings about undefined references.

What could be the problem?

Regards,

Udo Baumgartner