# The Regina Handbook

Benjamin Burton `<bab@debian.org>`

Revision 4.95 (2013-11-12)

Copyright © 1999–2013 The Regina development team

Both Regina and this handbook are licensed under the terms of the GNU General Public License.

Regina is a software package for studying 3-manifold triangulations and normal surfaces. Other key features include angle structures, census enumeration, combinatorial recognition of triangulations, and high-level tasks such as 3-sphere recognition and connected sum decomposition. Regina comes with a full graphical user interface, and also offers Python bindings and a low-level C++ programming interface.

This handbook is current as of 12 November 2013 for Regina 4.95.

Tip: You can also browse the alphabetical index of tasks.