/**
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* @license
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* Copyright 2020 Google LLC. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* =============================================================================
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*/
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import { Atanh } from '@tensorflow/tfjs-core';
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import { unaryKernelFunc } from '../kernel_utils/kernel_funcs_utils';
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import { CHECK_NAN_SNIPPET } from '../unaryop_gpu';
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const ATANH = CHECK_NAN_SNIPPET + `
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if ((x < -1.0) || (x > 1.0)) return NAN;
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return (log(1.0 + x) - log(1.0 - x)) / 2.0;`;
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export const atanh = unaryKernelFunc({ opSnippet: ATANH });
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export const atanhConfig = {
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kernelName: Atanh,
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backendName: 'webgl',
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kernelFunc: atanh,
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};
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