Synopsis
		sffft1 < in.rsf > out.rsf inv=n sym=n opt=y

Parameters
		bool inv=n [y/n] if y, perform inverse transform   bool opt=y [y/n] if y, determine optimal size for efficiency   bool sym=n [y/n] if y, apply symmetric scaling to make the FFT operator Hermitian

Used In
		BEI          fdm/kjartjac ft1/autocor ft1/ft2d ft1/plane4   CHEN          test/fpca   CWP          geo2006TimeShiftImagingCondition/flat geo2007StereographicImagingCondition/sigsbee2 geo2008NumericWEMVAoperators/flatWEMVA geo2008NumericWEMVAoperators/saltWEMVA geo2011WideAzimuthAngleDecomposition/flatEICangle jse2006RWEImagingOverturningReflections/sigsbee   DATA          sigsbee/ptest sigsbee/pwemig sigsbee/wemig   GEO384W          hw3/synth hw5/hyper   GEO391          hw5/seabeam   JSG          atten/enerd atten/karman1 atten/karmand atten/spectra diffr/chan3d diffr/fault lfd/twod lowrank/bp lowrank/fio lowrank/fowler lowrank/impres lowrank/threed ltft/groll nmo3/mcelroy oc3/bei oc3/fault oc3/french oc3/frenchint reversible/nscnmo seislet/lena seislet/plane simistack/bei stackadcig/flat time2depth/masha2 vc3/fracs vc3/threedim   RSF          reprobook/exam5 rsf/rsftour school/complex school/single scons/rsfpy su/rsflab10   SEP          fat/green fkamo/impresp fractal/random oc2/cup oc2/elfshot oc2/ocimp pyramid/model pyramid/pyramid vc2/spec velspec/sigvc   SWAG          anisogath/synth itime/syn   TUTORIAL          authors/data