NDFT for nonequispaced data on the rotation group SO(3)

the algorithms are written by Antje Vollrath

based on the paper
Potts, D., Prestin J., and Vollrath A.
 A Fast Algorithm for Nonequispaced Fourier Transforms on the Rotation Group
 to appear in Num. Alg.
 
Available from:
http://www.tu-chemnitz.de/~potts
 