On Thu, 2 Jan 2014 12:29:42 David Goldsmith wrote: > Anyone here use/have an opinion about the Quaternion type @ > rosettacode.org<http://rosettacode.org/wiki/Simple_Quaternion_type_and_opera > tions#Python>? Or have an opinion about it having derived the type from > collections.namedtuple? Anyone have an open-source, numpy-based > alternative? Ditto last question for Octonion and/or general n-basis > Grassmann (exterior) and/or Clifford Algebras? (rosettacode appears to > have none of these). Thanks!
Hi David, Not Numpy based, but: GluCat http://sourceforge.net/projects/glucat/ is an open source C++ library for calculations in Clifford algebras, based on the C++ Standard Library and Boost uBLAS. It also includes PyClical, a Python extension module coded in Cython. The PyClical tutorials and demos at http://sourceforge.net/p/glucat/git/ci/master/tree/pyclical/demos/ should give you an idea of how PyClical can be used with Numpy, SciPy and the rest of Python. See also http://sourceforge.net/p/glucat/git/ci/master/tree/README If you have compilation problems, try the release_0_7_1-patches branch: http://sourceforge.net/p/glucat/git/ci/release_0_7_1-patches/ I am always open to feedback and criticism of this code. All the best, Paul -- Paul Leopardi http://www.maths.anu.edu.au/~leopardi
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