This article introduces– 1.How to define Gaussian sensor frequency response: How to express the frequency response of a detector (for example: piezoelectric ultrasonic transducer) when the response has a Gaussian shape, based on the example of a homogeneous propagation medium; 2.Comparison of simulated functions: Introducing a brief comparison between the simulated functions “kspaceFirstOrder2D” and “kspaceecondorder”. […]
Tag: set
Unlock the Hutool magic box: a magical tool set that Java developers cannot miss
: Just work hard and leave the rest to time : Xiaopozhan Unlock the Hutool magic box: a magical tool set that Java developers cannot miss Preface First: String processing 1. Pinyin conversion 2. Regular expression matching 3. Unicode transcoding Second: date operation 1. Date formatting 2. Calculate date difference 3. Get date range Third: […]
Modeling analysis of the “Friends” sitcom data set based on LDA topic analysis
?♂? Personal homepage: @ aiperson’s personal homepage ?About the author: Python learner I hope everyone will support us and we will make progress together! If the article is helpful to you, Welcome to comment Like Collection Add follow + Table of Contents 1.Project background 2. Introduction to data sets 3.Technical Tools 4. Experimental process 4.1 […]
MySQL replication environment setup
Welcome to follow the public account: Yijie IT The blog posts on this site are published on the public account first. Article directory 1 Environment preparation 2. Mysql8.0 installation 2.2.1 Obtain rpm package 2.2.2 Install and configure MySQL Server 2.2.1 Install database 2.2.2 Initialize database 2.2.3 Remote login 2.2.4 Compatible with old version verification 3 […]
STL follow-up-set/multiset container
set container principle std::set is a container in the C++ standard library that provides an ordered, non-duplicate collection of elements. The implementation of std::set is based on balanced binary search trees (red-black trees). The following are the main features and implementation principles of std::set: Ordering: The elements in std::set are stored in a specific order […]
CVE-2023-42820: JumpServer password reset vulnerability
Table of Contents 0x01 Introduction 0x02 Vulnerability Overview 0x03 affected version 0x04 Environment setup 0x05 Vulnerability recurrence 0x06 Repair method 0x01 Introduction JumpServer open source bastion host is an operation and maintenance security audit system product that provides identity authentication, authorization control, account management, security audit and other functional support to help enterprises quickly build […]
Hadoop cluster environment setup
Hadoop environment setup write in front Statement and pitfall summary Software preparation Introduction to Hadoop Officially built Prerequisite environment preparation Install Ubuntu20.04 Server XShell remote connection Install jdk Install hadoop SSH Static IP configuration Cluster construction Cluster creation Modify hostname and IP address SSH configuration Hadoop configuration workers core-site.xml hdfs-site.xml yarn-site.xml mapred-site.xml Scripting xsync myhadoop.sh […]
Data structure: unordered_map and unordered_set
Table of Contents 1.Framework 2. Structure unordered_map unordered_set 3. Modifications to HashTable Change template parameters 4. Add an iterator a. Structure b. Operator overloading c.HashTable encapsulates iterator d.Iterators of unordered_map and unordered_set 1.Frame 1. Reuse HashTable ~~> Add template parameter KeyOfT to obtain Key value unordered_map passes K, V unordered_set passes K 2. Add iterator: […]
C++STL(5) set container summary
C++ STL(5) set container summary Directory C++ STL(5) set container summary 1. Introduction 2. Constructor and member functions 3. Conclusion 1. Introduction std::set in C++ is a container that provides an ordered, non-repeating collection of elements. The following is some introduction to the std::set container: Ordering: The elements in std::set are sorted in ascending order. […]
Spring dependency injection methods: set injection and constructor injection
Spring Spring6 enables Log4j2 logging framework dependency injection set injection set injects simple types Classic case: injecting values into attributes of the data source: Inject into array Inject into List collection Inject Set collection Inject into Map collection constructor injection Spring6 enables Log4j2 logging framework Starting from Spring 5, the integrated logging framework supported by […]