NewsΒΆ

  • Version 2.5 (Feb 2017): New features include:
    • Rigorous computation of hyperbolic volume.
    • STL export of Dirichlet domains for 3D printing, contributed by Jose Sanchez.
    • Support for Python 3, SageMath 7.5 and 7.6, and many more versions of Python on Windows.
    • Much improved infrastructure for testing and distributing SnapPy.
  • Version 2.4 (May 2016): New features include:
  • Version 2.3 (March 2015): New features include:
    • Major improvements to the link and planar diagram component, including link simplification, random links, and better documentation.
    • Basic support for spun normal surfaces.
    • New extra features when used inside of Sage:
    • Better compatibility with OS X Yosemite and Windows 8.1.
    • Development changes:
      • Major source code reorganization/cleanup.
      • Source code repository moved to Bitbucket.
      • Python modules now hosted on PyPI, simplifying installation.
  • Version 2.2 (June 2014): Includes Ben Burton’s census of orientable cusped manifolds with 9 tetrahedra.
  • Version 2.1 (February 2014): New high-precision manifolds (ManifoldHP) which compute hyperbolic stuctures (and everything related) in quad-double (212 bit) precision.
  • Version 2.0 (September 2013): Many new features, including:
    • A manifold browser window for easily examining a particular manifold.
    • Many improvements to the link editor, including
      • A smoothed view mode with image export to EPS/PDF/SVG/TikZ.
      • Producing a fully editable link from combinatorial data like a DT code.
    • Splitting manifolds along surfaces of non-negative euler characteristic.
    • Generalizing the ptolemy obstruction class to allow computation of PGL(3,C)-representations and improving usability of the ptolemy module.
    • CensusKnots now includes knot exteriors with 8 tetrahedra.
  • Version 1.8 (May 2013) improves handling of DT codes and adds the HTLinkExteriors census, which provides identification for knots and links up to 14 crossings.
  • Version 1.7 (November 2012) incorporates the ptolemy module for studying representations of 3-manifold groups into pSL(N, C).
  • Version 1.6 (August 2012) includes a new way to make links and some support for arbitrary precision calculation.
  • Version 1.5 (February 2012) includes much improved manifold censuses.
  • Version 1.4 (December 2011) uses the current release of IPython, which has been completely rewritten.
  • Version 1.3.10 (July 2011) incorporates Twister; a useful users guide.
  • Version 1.3 (February 2011) has a completely redesigned cusp horoball viewer and many bug fixes!
  • Version 1.2 (December 2010).
  • Version 1.1 (February 2010).
  • Version 1.0 (August 2009) Initial version.