package owl

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OCaml Scientific and Engineering Computing

Install 

dune-project
 Dependency

github.com Readme Changelog MIT License Edit opam file Versions (16)

Authors

  1. L
    Liang Wang

Maintainers

  1. L
    Liang Wang <ryanrhymes@gmail.com>

Sources

owl-1.0.1.tbz
sha256=72ca9f6edd302fdfa16c7559cedac7ac2c885466a367e17ea1ea8807b2dd13ef
sha512=72a60fb5b0ee4eea6cd8012aab9a492a32483feb218c1b6b4b913e0af985fba288113164e5af1129c0b5fffdb49d7b9aded6647238626b6561dc7125fdeb4eb5

doc/src/owl/owl_fftpack.ml.html

Source file owl_fftpack.ml

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# 1 "src/owl/fftpack/owl_fftpack.ml"
(*
 * OWL - OCaml Scientific and Engineering Computing
 * Copyright (c) 2016-2020 Liang Wang <liang.wang@cl.cam.ac.uk>
 *)

open Bigarray
open Owl_core_types

external owl_float32_rfftf
  :  (float, float32_elt) owl_arr
  -> (Complex.t, complex32_elt) owl_arr
  -> int
  -> unit
  = "float32_rfftf"

external owl_float64_rfftf
  :  (float, float64_elt) owl_arr
  -> (Complex.t, complex64_elt) owl_arr
  -> int
  -> unit
  = "float64_rfftf"

let _owl_rfftf
    : type a b c d.
      (a, b) kind -> (c, d) kind -> (a, b) owl_arr -> (c, d) owl_arr -> int -> unit
  =
 fun ityp otyp x y axis ->
  match ityp, otyp with
  | Float32, Complex32 -> owl_float32_rfftf x y axis
  | Float64, Complex64 -> owl_float64_rfftf x y axis
  | _                  -> failwith "_owl_rfftf: unsupported operation"


external owl_float32_rfftb
  :  (Complex.t, complex32_elt) owl_arr
  -> (float, float32_elt) owl_arr
  -> int
  -> unit
  = "float32_rfftb"

external owl_float64_rfftb
  :  (Complex.t, complex64_elt) owl_arr
  -> (float, float64_elt) owl_arr
  -> int
  -> unit
  = "float64_rfftb"

let _owl_rfftb
    : type a b c d.
      (a, b) kind -> (c, d) kind -> (a, b) owl_arr -> (c, d) owl_arr -> int -> unit
  =
 fun ityp otyp x y axis ->
  match ityp, otyp with
  | Complex32, Float32 -> owl_float32_rfftb x y axis
  | Complex64, Float64 -> owl_float64_rfftb x y axis
  | _                  -> failwith "_owl_rfftb: unsupported operation"


external owl_complex32_cfftf
  :  (Complex.t, complex32_elt) owl_arr
  -> (Complex.t, complex32_elt) owl_arr
  -> int
  -> unit
  = "float32_cfftf"

external owl_complex64_cfftf
  :  (Complex.t, complex64_elt) owl_arr
  -> (Complex.t, complex64_elt) owl_arr
  -> int
  -> unit
  = "float64_cfftf"

let _owl_cfftf : type a b. (a, b) kind -> (a, b) owl_arr -> (a, b) owl_arr -> int -> unit
  = function
  | Complex32 -> owl_complex32_cfftf
  | Complex64 -> owl_complex64_cfftf
  | _         -> failwith "_owl_cfftf: unsupported operation"


external owl_complex32_cfftb
  :  (Complex.t, complex32_elt) owl_arr
  -> (Complex.t, complex32_elt) owl_arr
  -> int
  -> unit
  = "float32_cfftb"

external owl_complex64_cfftb
  :  (Complex.t, complex64_elt) owl_arr
  -> (Complex.t, complex64_elt) owl_arr
  -> int
  -> unit
  = "float64_cfftb"

let _owl_cfftb : type a b. (a, b) kind -> (a, b) owl_arr -> (a, b) owl_arr -> int -> unit
  = function
  | Complex32 -> owl_complex32_cfftb
  | Complex64 -> owl_complex64_cfftb
  | _         -> failwith "_owl_cfftf: unsupported operation"