| 1 | /**
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| 2 | * @license
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| 3 | * Copyright 2020 Google LLC. All Rights Reserved.
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | * =============================================================================
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| 16 | */
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| 17 | import { ENGINE } from '../engine';
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| 18 | import { FloorDiv } from '../kernel_names';
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| 19 | import { makeTypesMatch } from '../tensor_util';
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| 20 | import { convertToTensor } from '../tensor_util_env';
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| 21 | import { op } from './operation';
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| 22 | /**
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| 23 | * Divides two `tf.Tensor`s element-wise, A / B. Supports broadcasting.
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| 24 | * The result is rounded with floor function.
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| 25 | *
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| 26 | *
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| 27 | * ```js
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| 28 | * const a = tf.tensor1d([1, 4, 9, 16]);
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| 29 | * const b = tf.tensor1d([1, 2, 3, 4]);
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| 30 | *
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| 31 | * a.floorDiv(b).print(); // or tf.div(a, b)
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| 32 | * ```
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| 33 | *
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| 34 | * ```js
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| 35 | * // Broadcast div a with b.
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| 36 | * const a = tf.tensor1d([2, 4, 6, 8]);
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| 37 | * const b = tf.scalar(2);
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| 38 | *
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| 39 | * a.floorDiv(b).print(); // or tf.floorDiv(a, b)
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| 40 | * ```
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| 41 | *
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| 42 | * @param a The first tensor as the numerator.
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| 43 | * @param b The second tensor as the denominator. Must have the same dtype as
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| 44 | * `a`.
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| 45 | *
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| 46 | * @doc {heading: 'Operations', subheading: 'Arithmetic'}
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| 47 | */
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| 48 | function floorDiv_(a, b) {
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| 49 | let $a = convertToTensor(a, 'a', 'floorDiv');
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| 50 | let $b = convertToTensor(b, 'b', 'floorDiv');
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| 51 | [$a, $b] = makeTypesMatch($a, $b);
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| 52 | const inputs = { a: $a, b: $b };
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| 53 | return ENGINE.runKernel(FloorDiv, inputs);
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| 54 | }
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| 55 | export const floorDiv = op({ floorDiv_ });
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