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1/**
2 * @license
3 * Copyright 2020 Google LLC. All Rights Reserved.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 * =============================================================================
16 */
17import { Tensor } from '../../tensor';
18/**
19 * Inverse fast Fourier transform.
20 *
21 * Computes the inverse 1-dimensional discrete Fourier transform over the
22 * inner-most dimension of input.
23 *
24 * ```js
25 * const real = tf.tensor1d([1, 2, 3]);
26 * const imag = tf.tensor1d([1, 2, 3]);
27 * const x = tf.complex(real, imag);
28 *
29 * x.ifft().print(); // tf.spectral.ifft(x).print();
30 * ```
31 * @param input The complex input to compute an ifft over.
32 *
33 * @doc {heading: 'Operations', subheading: 'Spectral', namespace: 'spectral'}
34 */
35declare function ifft_(input: Tensor): Tensor;
36export declare const ifft: typeof ifft_;
37export {};