On Apr 20, 2:43 pm, Andreas Tawn <andreas.t...@ubisoft.com> wrote: > > Algis Kabaila <akaba...@pcug.org.au> writes: > > > > Are there any modules for vector algebra (three dimensional > > > vectors, vector addition, subtraction, multiplication [scalar > > > and vector]. Could you give me a reference to such module? > > > NumPy has array (and matrix) types with support for these basic > > operations you mention. See the tutorial athttp://numpy.scipy.org/ > > You might also want to considerhttp://code.google.com/p/pyeuclid/ > > Cheers, > > Drea
Stealing this from Casey Duncan's recent post to the Grease users list: - (ab)use complex numbers for 2D vectors (only). Very fast arithmetic and built-in to Python. Downside is lack of abstraction. - Use pyeuclid (pure python) if ultimate speed isn't an issue, or if compiled extensions are. It supports 3D and has a nice api - vectypes is a more recent project from the same author as pyeuclid. It offers a more consistent 'GLSL' like interface, including swizzling, and internally seems to have more maintainable code because it generates various sizes of vector and matrix from a single template. This is done without performance penalty because the generation is done at design time, not runtime. - Use pyeigen if you want fast vectors, and don't mind compiling some C/C++. I don't know how the Python api looks though - Use numpy if you want fast batch operations -- http://mail.python.org/mailman/listinfo/python-list
