---
Type: desktop-application
ID: regina.desktop
Package: regina-normal
Name:
C: Regina
Summary:
C: Mathematical software for low-dimensional topology
Description:
C: >-
<p>
Regina is a software package for 3-manifold and 4-manifold topologists,
with a focus on triangulations, knots and links, normal surfaces, and
angle structures.
</p>
<p>
For 3-manifolds, it includes high-level tasks such as 3-sphere
recognition, connected sum decomposition and Hakenness testing,
comes with a rich database of census manifolds, and incorporates the
SnapPea kernel for working with hyperbolic manifolds.
For 4-manifolds, it offers a range of combinatorial and algebraic tools,
plus support for normal hypersurfaces.
For knots and links, Regina can perform combinatorial manipulation,
compute knot polynomials, and work with several import/export formats.
</p>
<p>
Regina comes with a full graphical user interface, as well as
Python bindings and a low-level C++ programming interface.
</p>
ProjectLicense: GPL-2.0-or-later
Categories:
- Math
- Education
- Science
Url:
homepage: https://regina-normal.github.io/
Icon:
cached:
- name: regina-normal_regina.png
width: 48
height: 48
- name: regina-normal_regina.png
width: 64
height: 64
- name: regina-normal_regina.png
width: 128
height: 128
remote:
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/icons/128x128/regina-normal_regina.png
width: 128
height: 128
stock: regina
Launchable:
desktop-id:
- regina.desktop
Provides:
mediatypes:
- application/x-regina
Screenshots:
- default: true
caption:
C: 3-manifold and 4-manifold triangulations
thumbnails:
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-1_1248x702.png
width: 1248
height: 702
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-1_752x423.png
width: 752
height: 423
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-1_624x351.png
width: 624
height: 351
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-1_224x126.png
width: 224
height: 126
source-image:
url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-1_orig.png
width: 1920
height: 1080
- caption:
C: Normal surfaces and angle structures
thumbnails:
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-2_1248x702.png
width: 1248
height: 702
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-2_752x423.png
width: 752
height: 423
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-2_624x351.png
width: 624
height: 351
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-2_224x126.png
width: 224
height: 126
source-image:
url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-2_orig.png
width: 1920
height: 1080
- caption:
C: Knots and links
thumbnails:
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-3_1248x702.png
width: 1248
height: 702
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-3_752x423.png
width: 752
height: 423
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-3_624x351.png
width: 624
height: 351
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-3_224x126.png
width: 224
height: 126
source-image:
url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-3_orig.png
width: 1920
height: 1080
- caption:
C: In-built Python scripting
thumbnails:
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-4_1248x702.png
width: 1248
height: 702
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-4_752x423.png
width: 752
height: 423
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-4_624x351.png
width: 624
height: 351
- url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-4_224x126.png
width: 224
height: 126
source-image:
url: r/re/regina.desktop/86f8d0b977cd45541ac8f7313cb934d5/screenshots/image-4_orig.png
width: 1920
height: 1080
Releases:
- version: '7.3'
type: stable
unix-timestamp: 1679097600
description:
C: >-
<p>
Maintenance release that fixes some bugs, cleans up some
unexpected behaviour, and improves compatibility with Python 3.11.
</p>
- version: '7.2'
type: stable
unix-timestamp: 1666915200
description:
C: >-
<p>
Significant updates for Python users, including comprehensive
docstrings throughout Regina's API and support for Python 3.11,
plus a handful of other minor improvements.
</p>
- version: '7.1'
type: stable
unix-timestamp: 1664496000
description:
C: >-
<p>
Adds intersection forms, thin and normalised links in all facial
dimensions, handlebody recognition, multithreaded census construction,
and widespread support for tight encodings, plus several other
features and improvements.
</p>
- version: '7.0'
type: stable
unix-timestamp: 1639872000
description:
C: >-
<p>
An enormous update for programmers: the native C++ interface is now
built around modern language features, and Python is now a
first-class citizen. Plus several new topological and algebraic
features, and a new, more flexible file format.
</p>
