fftw3 0.8.5 · OCaml Package

FFT of Bigarray.Array2.

val create : 
  ('a, 'b) Bigarray.kind ->
  'c Bigarray.layout ->
  int ->
  int ->
  ('a, 'b, 'c) Bigarray.Array2.t

See Fftw3.Sig.Genarray.create.

type 'l complex_array = (Complex.t, complex_elt, 'l) Bigarray.Array2.t

Double precision complex 2D array.

type 'l float_array = (float, float_elt, 'l) Bigarray.Array2.t

Double precision float 2D array.

type coord = int * int

Coordinates of emlements of the 2D array.

val dft : 
  dir ->
  ?meas:measure ->
  ?destroy_input:bool ->
  ?unaligned:bool ->
  ?howmany_n:int array ->
  ?howmanyi:coord list ->
  ?ni:coord ->
  ?ofsi:coord ->
  ?inci:coord ->
  'l complex_array ->
  ?howmanyo:coord list ->
  ?no:coord ->
  ?ofso:coord ->
  ?inco:coord ->
  'l complex_array ->
  c2c plan

See Fftw3.Sig.Genarray.dft.

val r2c : 
  ?meas:measure ->
  ?destroy_input:bool ->
  ?unaligned:bool ->
  ?howmany_n:int array ->
  ?howmanyi:coord list ->
  ?ni:coord ->
  ?ofsi:coord ->
  ?inci:coord ->
  'l float_array ->
  ?howmanyo:coord list ->
  ?no:coord ->
  ?ofso:coord ->
  ?inco:coord ->
  'l complex_array ->
  r2c plan

See Fftw3.Sig.Genarray.r2c.

val c2r : 
  ?meas:measure ->
  ?unaligned:bool ->
  ?howmany_n:int array ->
  ?howmanyi:coord list ->
  ?ni:coord ->
  ?ofsi:coord ->
  ?inci:coord ->
  'l complex_array ->
  ?howmanyo:coord list ->
  ?no:coord ->
  ?ofso:coord ->
  ?inco:coord ->
  'l float_array ->
  c2r plan

See Fftw3.Sig.Genarray.c2r.

val r2r : 
  (r2r_kind * r2r_kind) ->
  ?meas:measure ->
  ?destroy_input:bool ->
  ?unaligned:bool ->
  ?howmany_n:int array ->
  ?howmanyi:coord list ->
  ?ni:coord ->
  ?ofsi:coord ->
  ?inci:coord ->
  'l float_array ->
  ?howmanyo:coord list ->
  ?no:coord ->
  ?ofso:coord ->
  ?inco:coord ->
  'l float_array ->
  r2r plan

See Fftw3.Sig.Genarray.r2r.