@tensorflow/tfjs-core
Version:
Hardware-accelerated JavaScript library for machine intelligence
36 lines • 4.2 kB
JavaScript
/**
* @license
* Copyright 2020 Google LLC. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =============================================================================
*/
import { Acosh } from '../kernel_names';
import { cast } from '../ops/cast';
import { div } from '../ops/div';
import { sqrt } from '../ops/sqrt';
import { square } from '../ops/square';
import { sub } from '../ops/sub';
export const acoshGradConfig = {
kernelName: Acosh,
inputsToSave: ['x'],
gradFunc: (dy, saved) => {
const [x] = saved;
return {
x: () => {
const a = sqrt(sub(square(cast(x, 'float32')), 1));
return div(dy, a);
}
};
}
};
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