File: trig.mli

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(*
 * Copyright (c) 1997-1999 Massachusetts Institute of Technology
 * Copyright (c) 2003, 2007-14 Matteo Frigo
 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *)

val rdft : int -> int -> Complex.signal -> Complex.signal
val hdft : int -> int -> Complex.signal -> Complex.signal
val dft_via_rdft : int -> int -> Complex.signal -> Complex.signal
val dht : int -> int -> Complex.signal -> Complex.signal

val dctI : int -> Complex.signal -> Complex.signal
val dctII : int -> Complex.signal -> Complex.signal
val dctIII : int -> Complex.signal -> Complex.signal
val dctIV : int -> Complex.signal -> Complex.signal

val dstI : int -> Complex.signal -> Complex.signal
val dstII : int -> Complex.signal -> Complex.signal
val dstIII : int -> Complex.signal -> Complex.signal
val dstIV : int -> Complex.signal -> Complex.signal