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2022-07-15 13:04:46 +0200 commented question Is there code to identify a decomposition of the lexicographic product of a graph?

I read the book "Handbook of product graphs", that says that the recognition complexity of lexicographic products is po

2022-07-15 13:04:46 +0200 received badge  Commentator
2022-07-15 05:12:19 +0200 edited question Is there code to identify a decomposition of the lexicographic product of a graph?

Is there code to identify a decomposition of the lexicographic product of a graph? In graph theory, the lexicographic p

2022-07-15 04:56:19 +0200 edited question Is there code to identify a decomposition of the lexicographic product of a graph?

Is there code to identify a decomposition of the lexicographic product of a graph? In graph theory, the lexicographic p

2022-07-15 04:56:00 +0200 edited question Is there code to identify a decomposition of the lexicographic product of a graph?

Is there code to identify a decomposition of the lexicographic product of the graph In graph theory, the lexicographic

2022-07-15 04:54:35 +0200 edited question Is there code to identify a decomposition of the lexicographic product of a graph?

Is there code to identify a decomposition of the lexicographic product of the graph In graph theory, the lexicographic

2022-07-15 04:52:34 +0200 edited question Is there code to identify a decomposition of the lexicographic product of a graph?

Is there code to identify a decomposition of the lexicographic product of the graph In graph theory, the lexicographic

2022-07-15 04:51:31 +0200 asked a question Is there code to identify a decomposition of the lexicographic product of a graph?

Is there code to identify a decomposition of the lexicographic product of the graph In graph theory, the lexicographic

2022-05-21 08:59:51 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath 9.0 and sagemath 9.3 on my computer crash I've been using Sagemath on my computer (windows 10) for a long time

2022-05-21 04:29:12 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath 9.0 and sagemath 9.3 on my computer crash I've been using Sagemath on my computer (windows 10 ) for a long tim

2022-05-21 04:15:27 +0200 commented answer sagemath 9.0 and sagemath 9.3 on my computer crash

Thank you for your kind advice. Recent lagging updates to Sagemath for Windows have made me worry about not offering a W

2022-05-21 04:03:15 +0200 marked best answer sagemath 9.0 and sagemath 9.3 on my computer crash

I've been using Sagemath on my computer (windows 10) for a long time, but today I found that sagemath Notebook9.0 or 9.3 all crash. I looked at the following information returned by sagemathshell. It doesn't seem normal. I don't know how to solve it. Even if I reinstalled it, it didn't work.

sagemath 9.2 notebook:

Could not find platform independent libraries <prefix>Could not find platform dependent libraries <exec_prefix>Consider setting $PYTHONHOME to <prefix>[ :<exec_prefix>]

Could not find platform independent libraries <prefix>Could not find platform dependent libraries <exec_prefix>Consider setting $PYTHONHOME to <prefix>[ :<exec_prefix>] Fatal Python error: initfsencoding: Unable to get the locale encodingModuleNotFoundError : No module named 'encodings ' Current thread oxe000000800018040(most recent call first): [main] python3 1975 cygwin_exception: : open_stackdumpfile: Dumping stacktrace to python3.stackdump

[main] python3 1975 cygwin_exception: : open_stackdumpfile: Dumping stacktrace to python3.stackdump

sagemath9.3shell:

*Don't forget to exit when you are done. Beware:

  • Do not do anything with other copies of Sage on your system. * Do not use this for installing Sage packages using "sage -i" or for
    running "make" at Sage's root directory. These should be done
    outside the Sage shell.

Bypassing shell configuration files...

Note: SAGE_ROOT=/opt/sagemath-9.3

(sage-sh) asus@LAPTOP-PVHBSM6R:~$*

2022-05-21 04:03:07 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath 9.0 and sagemath 9.3 on my computer crash I've been using Sagemath on my computer (windows 10 ) for a long tim

2022-05-20 08:48:15 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath 9.0 and sagemath 9.3 on my computer crash I've been using Sagemath on my computer (windows 10 ) for a long tim

2022-05-20 08:47:59 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath 9.0 and sagemath 9.3 on my computer crash I've been using Sagemath on my computer (windows 10 ) for a long tim

2022-05-20 04:44:19 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath 9.0 and sagemath 9.3 on my computer crash I've been using Sagemath on my computer (windows 10 ) for a long tim

2022-05-20 04:33:35 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

all sagemath version on my computer crashes I've been using Sagemath on my computer (windows 10 ) for a long time, but t

2022-05-20 04:33:01 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath crashes I've been using Sagemath on my computer (windows 10 ) for a long time, but today I found that I opened

2022-05-20 04:32:45 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath crashes I've been using Sagemath on my computer (windows 10 ) for a long time, but today I found that I opened

2022-05-20 04:31:30 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath crashes I've been using Sagemath on my computer (windows 10 ) for a long time, but today I found that I opened

2022-05-20 04:30:39 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath crashes I've been using Sagemath on my computer (windows 10 ) for a long time, but today I found that I opened

2022-05-20 04:30:30 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath crashes I've been using Sagemath on my computer (windows 10 ) for a long time, but today I found that I opened

2022-05-20 04:30:18 +0200 edited question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath crashes I've been using Sagemath on my computer (windows 10 ) for a long time, but today I found that I opened

2022-05-20 04:29:57 +0200 asked a question sagemath 9.0 and sagemath 9.3 on my computer crash

sagemath crashes I've been using Sagemath on my computer (windows 10 ) for a long time, but today I found that I opened

2022-03-22 14:43:15 +0200 received badge  Popular Question (source)
2022-03-10 04:59:09 +0200 marked best answer How to put the drawing of graphs in a matrix or list

I have got some graphs on 5 vertices.

count = 0
for g in graphs.nauty_geng("5 1:5"):
    count = count+1
print(count)

we got 19 graphs. I want to show them but get long output using following codes, and it is very bad for viewing.

   for g in graphs.nauty_geng("5 1:5"):
       g.show()

I thought of using matrix or list storage these drawings of graph , but it failed.

glist= [g for g in graphs.nauty_geng("5 1:5")]
map(show,glist)

we got noting from outputs:

<map object at 0x6fdf37c3cf8>

This is what Maple did well.

with(GraphTheory):
graphsof5c := [NonIsomorphicGraphs(5, 1..5,output = graphs, outputform = graph)]:
DrawGraph~(graphsof5c,size=[300,300],stylesheet=[vertexborder=false,vertexpadding=20,edgecolor = "Blue",
               vertexcolor="Gold"])

My points are less than 60 points, I can’t upload corresponding pictures, sorry.

2022-03-10 03:22:23 +0200 commented answer plantri installation always fails

Wish it good luck and I strongly hope that Plantri 5.2 will not be available as an optional package in the future.

2022-03-10 03:21:46 +0200 commented answer plantri installation always fails

Good luck and strongly hopes that Plantri 5.2 will not be available as an optional package in the future.

2022-03-10 03:21:29 +0200 commented answer plantri installation always fails

Hopes for good luck and strongly hopes that Plantri 5.2 will not be available as an optional package in the future.

2022-03-10 03:10:41 +0200 commented question plantri installation always fails

There is no problem with the other packages. I installed phitigra just now in sage 9.3 which is a graph editor widget

2022-03-10 03:09:55 +0200 commented question plantri installation always fails

There is no problem with the other packages. I installed phitigra just now in sage 9.3 which is a graph editor widget

2022-03-10 03:09:18 +0200 commented question plantri installation always fails

There is no problem with the other packages. I installed phitigra just now which is a graph editor widget for SageMath

2022-03-10 03:08:47 +0200 commented question plantri installation always fails

There is no problem with the other packages. I installed phitigra which is a graph editor widget for SageMath when using

2022-03-10 03:08:08 +0200 commented question plantri installation always fails

There is no problem with the other packages. I installed phitigra just now.

2022-03-10 03:04:26 +0200 commented answer plantri installation always fails

Well, it's also exciting to hope that the installation will improve. By the way I installed plantri on sage 9.0 success

2022-03-10 03:04:09 +0200 commented answer plantri installation always fails

Well, it's also exciting to hope that the installation will improve. By the way I installed it on sage 9.0 successfully,

2022-03-10 03:03:37 +0200 commented answer plantri installation always fails

Well, it's also exciting to hope that the installation will improve. By the way I installed sage 9.0 successfully, amazi

2022-03-09 15:22:29 +0200 commented answer plantri installation always fails

It hopes for good luck and strongly hopes that Plantri 5.2 will not be available as an optional package in the future.

2022-03-09 15:21:04 +0200 marked best answer plantri installation always fails

Plantri is a program that generates certain types of graphs that are imbedded on the sphere. Since I need to use the plantri package in my research. I tried to install it in sagemath 9.3 in windows version.

sage: !sage -i plantri

But the installation process always reminds:

make build/make/Makefile --stop 
make[3862]: Entering directory '/opt/sagemath-9.3' 
make[3862]: *** [Makefile:37: bootstrap] Error 127

I don't know what the reason is.

I personally think that planri and nauty have different focuses, but they are equally good. So my suggestion is whether it is possible to have plantri built in like nauty in future versions. It's disappointing that the installation always fails.