Even bandwith in NFCT and NFST

[nklb]

Hi,

according to your definition of the non equidistant trigonometric transforms here there shouldn't be a problem if the bandwidth N is odd.

But when I run an NFST(check) for an NFST plan with odd N I obtain the message

Error in nfst module: polynomial degree N has to be even

Same for NFCT. This can be easily reproduced by compiling and running /examples/nfst/simple_test.c with an odd N. It seems though that transforms for odd N are correctly computed if I don't let the check stop the function.

[michaelquellmalz]

This error message seems to be unnecessary. I cannot see any problem in the NFCT/NFST with odd degree N.

However, the plain NFFT works only for even degree N.