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by mkoeppe
31 Mar 2017, 18:48
Forum: Helpdesk
Topic: Can't compute VERTICES of non-pointed algebraic polyhedron
Replies: 1
Views: 4099

Can't compute VERTICES of non-pointed algebraic polyhedron

You are probably aware of this, and it is probably part of what you mean in the documentation with "limited support" for polyhedra over quadratic extensions, but I thought I should report it: polytope > $p = new Polytope<QuadraticExtension>(EQUATIONS=>[[1,2,3]], INEQUALITIES=>[[1,0,0]]); p...
by mkoeppe
29 Mar 2017, 19:46
Forum: Helpdesk
Topic: Polymake 3.1: Empty polytope has dimension 1
Replies: 6
Views: 7291

Re: Polymake 3.1: Empty polytope has dimension 1

Anyway, "just another special case". I'll work around it. I think this is the wrong conclusion. The point is that your "AFFINE_HULL" does not fit the description of the empty polytope. Please try the following: > $p = new Polytope(EQUATIONS=>[[-1, 0, 0]], INEQUALITIES=>[]); > $p...
by mkoeppe
29 Mar 2017, 08:26
Forum: Helpdesk
Topic: Computing VERTICES of algebraic polyhedron crashes polymake 3.1
Replies: 3
Views: 5510

Computing VERTICES of algebraic polyhedron crashes polymake 3.1

The attached polyhedron whose H-rep uses QuadraticExtension crashes polymake (segfault) when I try to compute the vertices. This is with Polymake 3.1 on Mac OS X, compiled within Sage using the minimal tarball. Simpler calculations, including some with QuadraticExtension, seem to work fine with this...
by mkoeppe
28 Mar 2017, 23:24
Forum: Helpdesk
Topic: Polymake 3.1: Empty polytope has dimension 1
Replies: 6
Views: 7291

Re: Polymake 3.1: Empty polytope has dimension 1

Anyway, "just another special case". I'll work around it.
by mkoeppe
28 Mar 2017, 22:59
Forum: Helpdesk
Topic: Polymake 3.1: Empty polytope has dimension 1
Replies: 6
Views: 7291

Re: Polymake 3.1: Empty polytope has dimension 1

Wait! The input data is not consistent. The polytope apparently is supposed to live in 2-space. If the affine hull of the polytope is given by just on linear equation it must be 1-dimensional. The corresponding rule, which is actually triggered, is correct. Please use "input properties" i...
by mkoeppe
28 Mar 2017, 20:56
Forum: Helpdesk
Topic: Polymake 3.1: Empty polytope has dimension 1
Replies: 6
Views: 7291

Polymake 3.1: Empty polytope has dimension 1

Welcome to polymake version 3.1 [...] Application polytope currently uses following third-party software packages: 4ti2, bliss, cdd, latte, libnormaliz, lrs, permlib, ppl, singular, sketch, sympol, threejs, tikz, tosimplex polytope > $p = new Polytope(VERTICES=>[], LINEALITY_SPACE=>[], AFFINE_HULL=...
by mkoeppe
05 Aug 2016, 18:55
Forum: Installing polymake
Topic: Installing polymake 3.0r1 from source on Mac OS X using gcc 4.9.2 - patch
Replies: 8
Views: 11631

Re: Installing polymake 3.0r1 from source on Mac OS X using gcc 4.9.2 - patch

So what's happening here is simply that GMP and other libraries are built for one architecture only, whereas "perl -MExtUtils::Embed -e ccflags" gives flags that build for two architectures at the time. Just a quick follow-up. I have just found an easier workaround that does not require p...
by mkoeppe
05 Aug 2016, 18:46
Forum: Installing polymake
Topic: Tiny patch for error reporting of bundled extension configuration
Replies: 1
Views: 6116

Tiny patch for error reporting of bundled extension configuration

We had a misconfiguration in shared libraries, which caused the bundled extension configuration to fail with the following output: bundled extension bliss ... /tmp/polymake_21906_configure: error while loading shared libraries: libgmp.so.16: cannot open shared object file: No such file or directory ...
by mkoeppe
25 Jul 2016, 18:32
Forum: Installing polymake
Topic: Installing polymake 3.0r1 from source on Mac OS X using gcc 4.9.2 - patch
Replies: 8
Views: 11631

Re: Installing polymake 3.0r1 from source on Mac OS X using gcc 4.9.2 - patch

We have published release 3.0r2 now. Thanks, it seems to work well within Sage. https://trac.sagemath.org/ticket/20892#comment:72 The minimal tarball now includes the nauty interface (without the nauty sources) along with a small configuration script which allows specifying a nauty source directory...

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