"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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/**
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* @license
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* Copyright 2018 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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var engine_1 = require("../engine");
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var tensor_util_env_1 = require("../tensor_util_env");
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var util = require("../util");
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var operation_1 = require("./operation");
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/**
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* Converts two real numbers to a complex number.
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*
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* Given a tensor `real` representing the real part of a complex number, and a
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* tensor `imag` representing the imaginary part of a complex number, this
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* operation returns complex numbers elementwise of the form [r0, i0, r1, i1],
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* where r represents the real part and i represents the imag part.
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*
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* The input tensors real and imag must have the same shape.
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*
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* ```js
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* const real = tf.tensor1d([2.25, 3.25]);
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* const imag = tf.tensor1d([4.75, 5.75]);
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* const complex = tf.complex(real, imag);
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*
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* complex.print();
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* ```
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*/
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/** @doc {heading: 'Tensors', subheading: 'Creation'} */
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function complex_(real, imag) {
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var $real = tensor_util_env_1.convertToTensor(real, 'real', 'complex');
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var $imag = tensor_util_env_1.convertToTensor(imag, 'imag', 'complex');
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util.assertShapesMatch($real.shape, $imag.shape, "real and imag shapes, " + $real.shape + " and " + $imag.shape + ", " +
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"must match in call to tf.complex().");
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return engine_1.ENGINE.runKernelFunc(function (backend) { return backend.complex($real, $imag); }, { $real: $real, $imag: $imag });
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}
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/**
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* Returns the real part of a complex (or real) tensor.
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*
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* Given a tensor input, this operation returns a tensor of type float that is
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* the real part of each element in input considered as a complex number.
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*
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* If the input is real, it simply makes a clone.
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*
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* ```js
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* const x = tf.complex([-2.25, 3.25], [4.75, 5.75]);
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* tf.real(x).print();
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* ```
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*/
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/** @doc {heading: 'Tensors', subheading: 'Creation'} */
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function real_(input) {
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var $input = tensor_util_env_1.convertToTensor(input, 'input', 'real');
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return engine_1.ENGINE.runKernelFunc(function (backend) { return backend.real($input); }, { $input: $input });
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}
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/**
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* Returns the imaginary part of a complex (or real) tensor.
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*
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* Given a tensor input, this operation returns a tensor of type float that is
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* the imaginary part of each element in input considered as a complex number.
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* If input is real, a tensor of all zeros is returned.
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*
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* ```js
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* const x = tf.complex([-2.25, 3.25], [4.75, 5.75]);
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* tf.imag(x).print();
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* ```
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*/
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/** @doc {heading: 'Tensors', subheading: 'Creation'} */
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function imag_(input) {
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var $input = tensor_util_env_1.convertToTensor(input, 'input', 'imag');
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return engine_1.ENGINE.runKernelFunc(function (backend) { return backend.imag($input); }, { $input: $input });
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}
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exports.complex = operation_1.op({ complex_: complex_ });
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exports.real = operation_1.op({ real_: real_ });
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exports.imag = operation_1.op({ imag_: imag_ });
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//# sourceMappingURL=complex_ops.js.map
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