Dear all,
Computer info: CPU: i7-6500U @ 2.50GHZ Memory: 16.0GB Sage information: SageMath 9.0 (Windows, installed using the .exe file), and even on Linux version. Platforms ran at: SageMath 9.0 Shell, SageMath 9.0 Notebook, From Python script (and then running the command sage -python "script_name.py"). Description of problem: When running the following code: P = [[-0.48, 0.83], [-5.33, 9.23]] Q = [[0.43, 0. ], [9.04, 0. ]] Z = [[-0.35, -0.60], [-1.44, -2.49]] V = VoronoiDiagram(P) R = [r for r in V.regions().items()] s = R[0][1].hyperplane_arrangement() V = VoronoiDiagram(Q) R = [r for r in V.regions().items()] s = s.add_hyperplane(R[0][1].hyperplane_arrangement()) V = VoronoiDiagram(Z) R = [r for r in V.regions().items()] s = s.add_hyperplane(R[0][1].hyperplane_arrangement()) s.regions() Sage fails to compute the regions which is weird since it can compute the vertices which means that there is even a bounded region (in my case). When running the same code on SageMathCell <https://sagecell.sagemath.org/>, It is computed smoothly while on my machine it is not! The full traceback I get is: --------------------------------------------------------------------------- ValueError Traceback (most recent call last) <ipython-input-6-4ba993d8025f> in <module>() ----> 1 s.regions() /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/misc/cachefunc.pyx in sage.misc.cachefunc.CachedMethodCallerNoArgs.__call__ (build/cythonized/sage/misc/cachefunc.c:12712)() 2308 if self.cache is None: 2309 f = self.f -> 2310 self.cache = f(self._instance) 2311 return self.cache 2312 /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/geometry/hyperplane_arrangement/arrangement.py in regions(self) 1608 R = self.base_ring() 1609 dim = self.dimension() -> 1610 universe = Polyhedron(eqns=[[0] + [0] * dim], base_ring=R) 1611 regions = [universe] 1612 for hyperplane in self: /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/geometry/polyhedron/constructor.py in Polyhedron(vertices, rays, lines, ieqs, eqns, ambient_dim, base_ring, minimize, verbose, backend) 660 if got_Vrep: 661 Vrep = [vertices, rays, lines] --> 662 return parent(Vrep, Hrep, convert=convert, verbose=verbose) /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/structure/parent.pyx in sage.structure.parent.Parent.__call__ (build/cythonized/sage/structure/parent.c:9245)() 900 return mor._call_(x) 901 else: --> 902 return mor._call_with_args(x, args, kwds) 903 904 raise TypeError(_LazyString(_lazy_format, ("No conversion defined from %s to %s", R, self), {})) /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/structure/coerce_maps.pyx in sage.structure.coerce_maps.DefaultConvertMap_unique._call_with_args (build/cythonized/sage/structure/coerce_maps.c:5081)() 178 print(type(C), C) 179 print(type(C._element_constructor), C._element_constructor) --> 180 raise 181 182 /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/structure/coerce_maps.pyx in sage.structure.coerce_maps.DefaultConvertMap_unique._call_with_args (build/cythonized/sage/structure/coerce_maps.c:4969)() 173 return C._element_constructor(x, *args) 174 else: --> 175 return C._element_constructor(x, *args, **kwds) 176 except Exception: 177 if print_warnings: /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/geometry/polyhedron/parent.py in _element_constructor_(self, *args, **kwds) 523 if convert and Vrep: 524 Vrep = [convert_base_ring(_) for _ in Vrep] --> 525 return self.element_class(self, Vrep, Hrep, **kwds) 526 if nargs == 1 and is_Polyhedron(args[0]): 527 polyhedron = args[0] /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/geometry/polyhedron/backend_cdd.py in __init__(self, parent, Vrep, Hrep, **kwds) 459 sage: TestSuite(p).run() 460 """ --> 461 Polyhedron_cdd.__init__(self, parent, Vrep, Hrep, **kwds) /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/geometry/polyhedron/base.py in __init__(self, parent, Vrep, Hrep, **kwds) 125 elif Hrep is not None: 126 ieqs, eqns = Hrep --> 127 self._init_from_Hrepresentation(ieqs, eqns, **kwds) 128 else: 129 self._init_empty_polyhedron() /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/geometry/polyhedron/backend_cdd.py in _init_from_Hrepresentation(self, ieqs, eqns, verbose) 114 s = cdd_Hrepresentation(self._cdd_type, ieqs, eqns) 115 s = self._run_cdd(s, '--redcheck', verbose=verbose) --> 116 s = self._run_cdd(s, '--repall', verbose=verbose) 117 self._init_from_cdd_output(s) 118 if not self.base_ring().is_exact(): /opt/sagemath-9.0/local/lib/python3.7/site-packages/sage/geometry/polyhedron/backend_cdd.py in _run_cdd(self, cdd_input_string, cmdline_arg, verbose) 163 if 'Error:' in ans + err: 164 # cdd reports errors on stdout and misc information on stderr --> 165 raise ValueError(ans.strip()) 166 return ans 167 ValueError: *Input Error: Input format is not correct. *Format: begin m n NumberType(real, rational or integer) b -A end How can i fix this problem!? -- You received this message because you are subscribed to the Google Groups "sage-support" group. 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