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by blorenz
14 Aug 2021, 10:00
Forum: General Discussion
Topic: Mixed volume -> edge matrix is singular?
Replies: 4
Views: 21077

Re: Mixed volume -> edge matrix is singular?

Hi, unfortunately you hit a bug in our mixed volume implementation. This bug is already fixed in the most recent polymake release 4.4, but is still present in the 4.2 release that was active in the webpolymake until today. I have now updated webpolymake to version 4.4 which does work for your exampl...
by blorenz
25 Jun 2021, 13:26
Forum: Installing polymake
Topic: polymake on FreeBSD -- some questions and help needed
Replies: 10
Views: 27079

Re: polymake on FreeBSD -- some questions and help needed

I have another question concerning the shared library: Right now, the port provides libpolymake.so.4.4 and libpolymake-apps-rt.so.4.4. What about libpolymake-apps.so.4.4? Should that one be provided, too? If so, I have to figure out why that one is not picked up by pkg. Sorry for the delay. That li...
by blorenz
18 Jun 2021, 23:34
Forum: Installing polymake
Topic: polymake on FreeBSD -- some questions and help needed
Replies: 10
Views: 27079

Re: polymake on FreeBSD -- some questions and help needed

I don't really know how you ended up with these undefined symbol errors for libnormaliz but they should disappear when adding ' -lnauty ' in the correct place, either in the global ' LIBS ' variable passed to configure ( ./configure LIBS=-lnauty ) or by adding an appropriate check in the libnormaliz...
by blorenz
18 Jun 2021, 09:42
Forum: Installing polymake
Topic: polymake on FreeBSD -- some questions and help needed
Replies: 10
Views: 27079

Re: polymake on FreeBSD -- some questions and help needed

Hi, I am currently working on bringing polymake into the FreeBSD ports system. It builds fine and the testsuite runs without errors. I am working with the polymake-4.4-minimal version. Thanks a lot for working on this and that is already a very good starting point. Because of problems with the respe...
by blorenz
17 Jun 2021, 12:47
Forum: Helpdesk
Topic: Stable intersection not contained in set-theoretic intersection
Replies: 6
Views: 8093

Re: Stable intersection not contained in set-theoretic intersection

Thanks for looking into this Simon! We will try to take care of this next week.
by blorenz
14 Apr 2021, 13:51
Forum: Helpdesk
Topic: Segmentation fault when using Polymake in Julia
Replies: 8
Views: 8300

Re: Segmentation fault when using Polymake in Julia

For updating the packages can you try running using Pkg; Pkg.update(); (Latest versions are Polymake.jl 0.5.5 and Oscar.jl 0.5.1.) For lldb, and also to test this in a clean environment it would be good to try this directly in the julia shell. So please run Base.julia_cmd() in your REPL. This should...
by blorenz
14 Apr 2021, 10:17
Forum: Helpdesk
Topic: Segmentation fault when using Polymake in Julia
Replies: 8
Views: 8300

Re: Segmentation fault when using Polymake in Julia

Hi, it is rather hard to say what can be causing this, I have seen a similar error once or twice on our MacOS CI but it was not really reproducible. Can you please provide some more details on your configuration, i.e. versioninfo(); using Pkg; Pkg.status(); You can also try updating your packages (a...
by blorenz
25 Feb 2021, 01:15
Forum: General Discussion
Topic: Example of rational polytope with Ehrhart polynomial
Replies: 1
Views: 18114

Re: Example of rational polytope with Ehrhart polynomial

Hi, thanks for the report, when I tried it locally I got the following output: polytope > $m = new Matrix([1,0,0],[1,1/2,0],[1,0,1/2]); polytope > $p = new Polytope<Rational>(VERTICES=>$m); polytope > print join("\n",@{$p->EHRHART_QUASI_POLYNOMIAL}); 1/8*x^2 + 3/4*x + 1 1/8*x^2 + 1/2*x + 3...
by blorenz
07 Oct 2020, 09:25
Forum: Installing polymake
Topic: "E: Unable to locate package polymake"
Replies: 2
Views: 16343

Re: "E: Unable to locate package polymake"

Hi, maybe you need to enable the 'universe' repository first, please see here: https://askubuntu.com/questions/148638/how-do-i-enable-the-universe-repository And then run: sudo apt update sudo apt install polymake If that still doesn't work, please post some details on the ubuntu version that you ar...
by blorenz
09 Jun 2020, 20:46
Forum: General Discussion
Topic: Checking if a polytope is a matroid polytope
Replies: 12
Views: 47062

Re: Checking if a polytope is a matroid polytope

It seems that your Apple command line tools are not working correctly, please run:

Code: Select all

xcode-select --install
You might need to do this every time you upgrade Mac OS X.

Benjamin

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