I've been in touch with Martin Reinecke, author of the libpsht code for spherical harmonic transforms, about licensing issues.
libpsht itself will remain under the GPL, but he is likely to release his C port of FFTPACK under BSD in the near future, as it is based on the public domain FFTPACK. I'm grateful for this change for my own purposes (allows releasing my own competing SHT library under the BSD) -- but it could perhaps be useful for NumPy or SciPy as well, depending on how complete the port is? E.g., perhaps make numpy.fft more complete (is the numpy.fft/scipy.fftpack split simply because of the Fortran dependency?). Not sure about whether all of FFTPACK or a subset is included, but it does include a Bluestein implementation in addition. http://libpsht.svn.sourceforge.net/viewvc/libpsht/libfftpack/ Dag Sverre _______________________________________________ NumPy-Discussion mailing list [email protected] http://mail.scipy.org/mailman/listinfo/numpy-discussion
