package owl

  1. Overview
  2. Docs
On This Page
  1. Basic functions
package owl
Legend:
Library
Module
Module type
Parameter
Class
Class type

Fast Fourier Transform

Basic functions
val fft : ?axis:int -> (Stdlib.Complex.t, 'a) Owl_dense_ndarray_generic.t -> (Stdlib.Complex.t, 'a) Owl_dense_ndarray_generic.t

``fft ~axis x`` performs 1-dimensional FFT on a complex input. ``axis`` is the highest dimension if not specified. The return is not scaled.

val ifft : ?axis:int -> (Stdlib.Complex.t, 'a) Owl_dense_ndarray_generic.t -> (Stdlib.Complex.t, 'a) Owl_dense_ndarray_generic.t

``ifft ~axis x`` performs inverse 1-dimensional FFT on a complex input. ``axis`` is the highest dimension by default.

val rfft : ?axis:int -> otyp:(Stdlib.Complex.t, 'a) Owl_dense_ndarray_generic.kind -> (float, 'b) Owl_dense_ndarray_generic.t -> (Stdlib.Complex.t, 'a) Owl_dense_ndarray_generic.t

``rfft ~axis ~otyp x`` performs 1-dimensional FFT on real input along the ``axis``. ``otyp`` is used to specify the output type, it must be the consistent precision with input ``x``. You can skip this parameter by using a submodule with specific precision such as ``Owl.Fft.S`` or ``Owl.Fft.D``.

val irfft : ?axis:int -> ?n:int -> otyp:(float, 'a) Owl_dense_ndarray_generic.kind -> (Stdlib.Complex.t, 'b) Owl_dense_ndarray_generic.t -> (float, 'a) Owl_dense_ndarray_generic.t

``irfft ~axis ~n x`` is the inverse function of ``rfft``. Note the ``n`` parameter is used to specified the size of output.

OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct