FXrays

Computes extremal rays with filtering

Project description

This package is a small, fast implementation of an algorithm for finding extremal rays of a polyhedral cone, with filtering. It is intended for finding normal surfaces in triangulated 3-manifolds, and therefore does not implement various features that might be useful for general extremal ray problems.

The setup is this. Define the support of a vector v in R^n to be the set of indices i such that v_i is non-zero. We are given an integer matrix M, typically with many more columns than rows, and a list of “illegal supports”. The support of a vector is illegal if its support contains one of the illegal supports on the list.

We want to find all the extremal rays of the cone (Null space of M) intersect (positive orthant), which are generated by vectors with legal support. (The restriction to vector with legal support is what is meant by “filtering”.)

The algorithm is due to Dave Letscher, and incorporates ideas of Komei Fukuda’s.

Project details

Release history Release notifications

This version

1.3.3

Jan 18, 2017

1.3.2

Dec 29, 2016

1.3.1

Apr 30, 2015

1.3

Feb 3, 2015

1.2

Dec 23, 2014

0.0

Dec 23, 2014

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Files for FXrays, version 1.3.3
Filename, size & hash	File type	Python version	Upload date
FXrays-1.3.3-cp27-cp27m-macosx_10_5_intel.whl (54.2 kB) View hashes	Wheel	cp27	Jan 18, 2017
FXrays-1.3.3-cp27-cp27mu-manylinux1_x86_64.whl (79.6 kB) View hashes	Wheel	cp27	Jan 18, 2017
FXrays-1.3.3-cp27-cp27m-win32.whl (24.0 kB) View hashes	Wheel	cp27	Jan 18, 2017
FXrays-1.3.3-cp27-cp27m-win_amd64.whl (25.8 kB) View hashes	Wheel	cp27	Jan 18, 2017
FXrays-1.3.3-cp34-cp34m-macosx_10_6_intel.whl (53.3 kB) View hashes	Wheel	cp34	Jan 18, 2017
FXrays-1.3.3-cp34-cp34m-manylinux1_x86_64.whl (82.7 kB) View hashes	Wheel	cp34	Jan 18, 2017
FXrays-1.3.3-cp34-cp34m-win32.whl (24.6 kB) View hashes	Wheel	cp34	Jan 18, 2017
FXrays-1.3.3-cp34-cp34m-win_amd64.whl (26.5 kB) View hashes	Wheel	cp34	Jan 18, 2017
FXrays-1.3.3-cp35-cp35m-macosx_10_6_intel.whl (53.2 kB) View hashes	Wheel	cp35	Jan 18, 2017
FXrays-1.3.3-cp35-cp35m-manylinux1_x86_64.whl (82.3 kB) View hashes	Wheel	cp35	Jan 18, 2017
FXrays-1.3.3-cp35-cp35m-win32.whl (25.9 kB) View hashes	Wheel	cp35	Jan 18, 2017
FXrays-1.3.3-cp35-cp35m-win_amd64.whl (28.0 kB) View hashes	Wheel	cp35	Jan 18, 2017
FXrays-1.3.3-cp36-cp36m-macosx_10_6_intel.whl (53.2 kB) View hashes	Wheel	cp36	Jan 18, 2017
FXrays-1.3.3-cp36-cp36m-manylinux1_x86_64.whl (82.3 kB) View hashes	Wheel	cp36	Jan 18, 2017
FXrays-1.3.3-cp36-cp36m-win32.whl (25.9 kB) View hashes	Wheel	cp36	Jan 18, 2017
FXrays-1.3.3-cp36-cp36m-win_amd64.whl (27.9 kB) View hashes	Wheel	cp36	Jan 18, 2017
FXrays-1.3.3-cp37-cp37m-macosx_10_6_intel.whl (46.2 kB) View hashes	Wheel	cp37	Aug 17, 2018
FXrays-1.3.3-cp37-cp37m-manylinux1_x86_64.whl (83.8 kB) View hashes	Wheel	cp37	Aug 17, 2018
FXrays-1.3.3-cp37-cp37m-win32.whl (24.8 kB) View hashes	Wheel	cp37	Aug 16, 2018
FXrays-1.3.3-cp37-cp37m-win_amd64.whl (27.2 kB) View hashes	Wheel	cp37	Aug 16, 2018
FXrays-1.3.3-py2.7-linux-x86_64.egg (78.6 kB) View hashes	Egg	2.7	Jan 18, 2017
FXrays-1.3.3-py3.4-linux-x86_64.egg (81.8 kB) View hashes	Egg	3.4	Jan 18, 2017
FXrays-1.3.3-py3.5-linux-x86_64.egg (81.4 kB) View hashes	Egg	3.5	Jan 18, 2017
FXrays-1.3.3-py3.6-linux-x86_64.egg (81.4 kB) View hashes	Egg	3.6	Jan 18, 2017
FXrays-1.3.3-py3.7-linux-x86_64.egg (84.3 kB) View hashes	Egg	3.7	Aug 17, 2018
FXrays-1.3.3.tar.gz (33.1 kB) View hashes	Source	None	Jan 18, 2017

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Hashes for FXrays-1.3.3-cp27-cp27m-win_amd64.whl

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Hashes for FXrays-1.3.3-cp34-cp34m-win32.whl

Hashes for FXrays-1.3.3-cp34-cp34m-win32.whl
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Hashes for FXrays-1.3.3-cp34-cp34m-win_amd64.whl
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Hashes for FXrays-1.3.3-cp35-cp35m-macosx_10_6_intel.whl
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Hashes for FXrays-1.3.3-cp35-cp35m-manylinux1_x86_64.whl
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Hashes for FXrays-1.3.3-cp35-cp35m-win32.whl

Hashes for FXrays-1.3.3-cp35-cp35m-win32.whl
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Hashes for FXrays-1.3.3-cp35-cp35m-win_amd64.whl

Hashes for FXrays-1.3.3-cp35-cp35m-win_amd64.whl
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Hashes for FXrays-1.3.3-cp36-cp36m-macosx_10_6_intel.whl

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Hashes for FXrays-1.3.3-cp36-cp36m-manylinux1_x86_64.whl

Hashes for FXrays-1.3.3-cp36-cp36m-manylinux1_x86_64.whl
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Hashes for FXrays-1.3.3-cp36-cp36m-win32.whl

Hashes for FXrays-1.3.3-cp36-cp36m-win32.whl
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Hashes for FXrays-1.3.3-cp36-cp36m-win_amd64.whl

Hashes for FXrays-1.3.3-cp36-cp36m-win_amd64.whl
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Hashes for FXrays-1.3.3-cp37-cp37m-win32.whl
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Hashes for FXrays-1.3.3.tar.gz

Hashes for FXrays-1.3.3.tar.gz
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