@tensorflow/tfjs-core
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Hardware-accelerated JavaScript library for machine intelligence
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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 { ENGINE } from '../engine';
import { Complex } from '../kernel_names';
import { convertToTensor } from '../tensor_util_env';
import * as util from '../util';
import { op } from './operation';
/**
* Converts two real numbers to a complex number.
*
* Given a tensor `real` representing the real part of a complex number, and a
* tensor `imag` representing the imaginary part of a complex number, this
* operation returns complex numbers elementwise of the form [r0, i0, r1, i1],
* where r represents the real part and i represents the imag part.
*
* The input tensors real and imag must have the same shape.
*
* ```js
* const real = tf.tensor1d([2.25, 3.25]);
* const imag = tf.tensor1d([4.75, 5.75]);
* const complex = tf.complex(real, imag);
*
* complex.print();
* ```
*
* @doc {heading: 'Tensors', subheading: 'Creation'}
*/
function complex_(real, imag) {
const $real = convertToTensor(real, 'real', 'complex');
const $imag = convertToTensor(imag, 'imag', 'complex');
util.assertShapesMatch($real.shape, $imag.shape, `real and imag shapes, ${$real.shape} and ${$imag.shape}, ` +
`must match in call to tf.complex().`);
const inputs = { real: $real, imag: $imag };
return ENGINE.runKernel(Complex, inputs);
}
export const complex = op({ complex_ });
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