ring_analysis
call ring_analysis( nsmax, nlmax, nmmax, datain, nph, dataout, kphi0 )
Returns the periodically extended complex Fourier Transform of datain in dataout. They are returned in the following order: 0 1 2 3 4 5 6 7 6 5 4 3 2 1. The value kphi0=0 specifies that no phase factor needed to be applied, because the ring starts at
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Version 3.30, 2015-10-08