passagemath-graphs 10.4.64

passagemath: Graphs, posets, hypergraphs, designs, abstract complexes, combinatorial polyhedra, abelian sandpiles, quivers

About SageMath

“Creating a Viable Open Source Alternative to

Magma, Maple, Mathematica, and MATLAB”

Copyright (C) 2005-2024 The Sage Development Team

https://www.sagemath.org

SageMath fully supports all major Linux distributions, recent versions of macOS, and Windows (Windows Subsystem for Linux).

See https://doc.sagemath.org/html/en/installation/index.html for general installation instructions.

About this pip-installable distribution package

This pip-installable package passagemath-graphs is a distribution of a part of the Sage Library. It provides a small subset of the modules of the Sage library (“sagelib”, sagemath-standard) for computations with graphs, posets, complexes, etc.

It consists of over 170 first-party Python and Cython modules and uses the Boost Graph Library, with additional functionality from NetworkX and several other libraries.

What is included

• Graph Theory

• Trees

• Posets

• Abstract Complexes

• Combinatorial Designs and Incidence Structure

• Finite State Machines, Automata, Transducers

• Cluster Algebras and Quivers

• Knot Theory

• Sandpiles

• see https://github.com/passagemath/passagemath/blob/main/pkgs/sagemath-graphs/MANIFEST.in

Examples

A quick way to try it out interactively:

$ pipx run --pip-args="--prefer-binary" --spec "passagemath-graphs[test]" ipython
In [1]: from sage.all__sagemath_graphs import *

In [6]: g = Graph([(1, 3), (3, 8), (5, 2)]); g
Out[6]: Graph on 5 vertices

In [7]: g.is_connected()
Out[7]: False

Available as extras, from other distributions

pip install passagemath-graphs[networkx] additionally installs NetworkX <https://networkx.github.io>:

$ pipx run --pip-args="--prefer-binary" --spec "passagemath-graphs[networkx,test]" ipython
In [1]: from sage.all__sagemath_graphs import *

In [2]: ## Example depending on networkx goes here

pip install passagemath-graphs[igraph] additionally installs igraph <https://python.igraph.org/en/stable/>:

$ pipx run --pip-args="--prefer-binary" --spec "passagemath-graphs[igraph,test]" ipython
In [1]: from sage.all__sagemath_graphs import *

In [2]: ## Example depending on igraph goes here

pip install passagemath-graphs[mip] additionally makes the mixed-integer programming solver GLPK available:

$ pipx run --pip-args="--prefer-binary" --spec "passagemath-graphs[mip,test]" ipython
In [1]: from sage.all__sagemath_graphs import *

In [2]: ## Example depending on MIP goes here

Development

$ git clone --origin passagemath https://github.com/passagemath/passagemath.git
$ cd passagemath
passagemath $ ./bootstrap
passagemath $ python3 -m venv graphs-venv
passagemath $ source graphs-venv/bin/activate
(graphs-venv) passagemath $ pip install -v -e pkgs/sagemath-graphs