"use strict";
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/**
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* @license
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* Copyright 2019 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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Object.defineProperty(exports, "__esModule", { value: true });
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var engine_1 = require("../engine");
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var tensor_util_env_1 = require("../tensor_util_env");
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var operation_1 = require("./operation");
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/**
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* Returns a diagonal tensor with a given diagonal values.
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*
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* Given a diagonal, this operation returns a tensor with the diagonal and
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* everything else padded with zeros.
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*
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* Assume the input has dimensions `[D1,..., Dk]`, then the output is a tensor
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* of rank 2k with dimensions `[D1,..., Dk, D1,..., Dk]`
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*
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* ```js
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* const x = tf.tensor1d([1, 2, 3, 4]);
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*
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* tf.diag(x).print()
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* ```
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* ```js
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* const x = tf.tensor1d([1, 2, 3, 4, 5, 6, 6, 8], [4, 2])
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*
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* tf.diag(x).print()
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* ```
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* @param x The input tensor.
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*/
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function diag_(x) {
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var $x = tensor_util_env_1.convertToTensor(x, 'x', 'diag').flatten();
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var outShape = x.shape.concat(x.shape);
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return engine_1.ENGINE.runKernelFunc(function (backend) { return backend.diag($x); }, { $x: $x })
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.reshape(outShape);
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}
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exports.diag = operation_1.op({ diag_: diag_ });
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//# sourceMappingURL=diag.js.map
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