/**
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* @license
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* Copyright 2018 Google Inc. 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 { Tensor } from '../tensor';
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import { TensorLike } from '../types';
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/**
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* Computes the norm of scalar, vectors, and matrices.
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* This function can compute several different vector norms (the 1-norm, the
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* Euclidean or 2-norm, the inf-norm, and in general the p-norm for p > 0)
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* and matrix norms (Frobenius, 1-norm, and inf-norm).
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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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* x.norm().print(); // or tf.norm(x)
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* ```
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*
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* @param x The input array.
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* @param ord Optional. Order of the norm. Supported norm types are
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* following:
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*
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* | ord | norm for matrices | norm for vectors
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* |------------|---------------------------|---------------------
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* |'euclidean' |Frobenius norm |2-norm
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* |'fro' |Frobenius norm |
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* |Infinity |max(sum(abs(x), axis=1)) |max(abs(x))
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* |-Infinity |min(sum(abs(x), axis=1)) |min(abs(x))
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* |1 |max(sum(abs(x), axis=0)) |sum(abs(x))
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* |2 | |sum(abs(x)^2)^1/2*
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*
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* @param axis Optional. If axis is null (the default), the input is
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* considered a vector and a single vector norm is computed over the entire
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* set of values in the Tensor, i.e. norm(x, ord) is equivalent
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* to norm(x.reshape([-1]), ord). If axis is a integer, the input
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* is considered a batch of vectors, and axis determines the axis in x
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* over which to compute vector norms. If axis is a 2-tuple of integer it is
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* considered a batch of matrices and axis determines the axes in NDArray
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* over which to compute a matrix norm.
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* @param keepDims Optional. If true, the norm have the same dimensionality
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* as the input.
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*/
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/** @doc {heading: 'Operations', subheading: 'Matrices'} */
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declare function norm_(x: Tensor | TensorLike, ord?: number | 'euclidean' | 'fro', axis?: number | number[], keepDims?: boolean): Tensor;
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export declare const norm: typeof norm_;
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export {};
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