Fft.Complexval make_workspace : int -> workspaceval make_wavetable : int -> wavetableval forward : 
  ?stride:int ->
  Gsl_complex.complex_array ->
  wavetable ->
  workspace ->
  unitval forward_rad2 : 
  ?dif:bool ->
  ?stride:int ->
  Gsl_complex.complex_array ->
  unitval transform : 
  ?stride:int ->
  Gsl_complex.complex_array ->
  wavetable ->
  workspace ->
  direction ->
  unitval transform_rad2 : 
  ?dif:bool ->
  ?stride:int ->
  Gsl_complex.complex_array ->
  direction ->
  unitval backward : 
  ?stride:int ->
  Gsl_complex.complex_array ->
  wavetable ->
  workspace ->
  unitval backward_rad2 : 
  ?dif:bool ->
  ?stride:int ->
  Gsl_complex.complex_array ->
  unitval inverse : 
  ?stride:int ->
  Gsl_complex.complex_array ->
  wavetable ->
  workspace ->
  unitval inverse_rad2 : 
  ?dif:bool ->
  ?stride:int ->
  Gsl_complex.complex_array ->
  unit