..
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    pgRouting Manual
    Copyright(c) pgRouting Contributors

    This documentation is licensed under a Creative Commons Attribution-Share
    Alike 3.0 License: https://creativecommons.org/licenses/by-sa/3.0/
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Spanning Tree - Category
===============================================================================


.. index from here

* :doc:`kruskal-family`
* :doc:`prim-family`

.. index to here

A spanning tree of an undirected graph is a tree that includes all the vertices
of G with the minimum possible number of edges.

For a disconnected graph, there there is no single tree, but a spanning forest,
consisting of a spanning tree of each connected component.

.. toctree::
    :hidden:

    kruskal-family
    prim-family

* **Supported versions:**
  current(`3.1 <https://docs.pgrouting.org/3.1/en/spanningTree-family.html>`__)
  `3.0 <https://docs.pgrouting.org/3.0/en/spanningTree-family.html>`__

See Also
-------------------------------------------------------------------------------

* `Boost: Prim's algorithm documentation <https://www.boost.org/libs/graph/doc/prim_minimum_spanning_tree.html>`__
* `Wikipedia: Prim's algorithm <https://en.wikipedia.org/wiki/Prim%27s_algorithm>`__

.. rubric:: Indices and tables

* :ref:`genindex`
* :ref:`search`
