#!/usr/bin/env python # -*- coding: utf-8 -*- # Copyright 1999-2020 Alibaba Group Holding Ltd. # # 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. [docs]def array_equal(a1, a2): """ True if two tensors have the same shape and elements, False otherwise. Parameters ---------- a1, a2 : array_like Input arrays. Returns ------- b : bool Returns True if the tensors are equal. See Also -------- allclose: Returns True if two tensors are element-wise equal within a tolerance. array_equiv: Returns True if input tensors are shape consistent and all elements equal. Examples -------- >>> import mars.tensor as mt >>> mt.array_equal([1, 2], [1, 2]).execute() True >>> mt.array_equal(mt.array([1, 2]), mt.array([1, 2])).execute() True >>> mt.array_equal([1, 2], [1, 2, 3]).execute() False >>> mt.array_equal([1, 2], [1, 4]).execute() False """ from ..datasource import tensor as astensor from ..datasource.scalar import scalar from .all import all try: a1, a2 = astensor(a1), astensor(a2) except Exception: return scalar(False) if a1.shape != a2.shape: return scalar(False) return all(astensor(a1 == a2))