Bertini Policies


``As is'' Clause

Bertini is distributed free of charge on an ``as is'' basis with no warranties, implied or otherwise, that it is suitable for any purpose. Its intended usage is for educational and for research purposes, so that the user may gain a greater understanding of numerical homotopy continuation for solving systems of polynomial equations. Any other use is strictly the user's responsibility.

License Fee

There is no license fee for Bertini.


You may convey verbatim copies of Bertini (source code, binary files, libbertini) in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that Bertini's License applies to Bertini; keep intact all notices of the absence of any warranty; and give all recipients a copy of Bertini's License along with Bertini. You may not charge a fee for any copy that you convey, and you may not offer support or warranty protection for a fee.

Citation and Attribution

The use of Bertini is for education and research purposes, subject only to professional ethical conduct, as follows.

In publications based on results obtained using Bertini or its successors, the use of Bertini should be acknowledged. The authors of the code are Daniel Bates, Jonathan Hauenstein, Andrew Sommese, and Charles Wampler.

          Daniel J. Bates, Jonathan D. Hauenstein, Andrew J Sommese,
          and Charles W. Wampler.
          \newblock Bertini: Software for Numerical Algebraic Geometry.
          \newblock Available at with permanent doi:
          author = {Bates, Daniel J. and Hauenstein, Jonathan D. and Sommese, Andrew J.
          and Wampler, Charles W.},
          title = {Bertini: Software for Numerical Algebraic Geometry},
          howpublished = {Available at with permanent doi:}


If you publish a result using Bertini, we would like to hear about it, please let us know.  You may write to any of us (addresses on web pages): Daniel J. Bates, Jonathan D. Hauenstein, Andrew J. Sommese, Charles W. Wampler