Many people are interested in cryptography, so today I will take you on a journey to explore how numbers are encrypted. 1 Let’s start with a little game. You think of a number, say 3; I will think of a number, say 5. Let’s keep our numbers secret from each other. How can we send … Read more
Introduction to Cryptography Cryptography is a young yet ancient discipline. It has been used to protect military and diplomatic communications for thousands of years. The earliest recorded communication cipher dates back to 400 BC. The ancient Greeks invented substitution ciphers. In 1881, the world’s first telephone secrecy patent emerged. The invention of the telegraph and … Read more
A prime number is also called a prime, which refers to a natural number greater than 1 that has no other factors apart from 1 and itself. If a natural number can be expressed as the product of two prime numbers, that natural number is called a semiprime (also known as a biprime or a … Read more
In the programming language rankings released by the TIOBE index, C++ has always been at the forefront. Since 2002, regardless of how times have changed, C++ has consistently ranked in the top five for 18 years. Historical rankings of major programming languages (1988-2020) This also means that, despite being constantly challenged by later languages like … Read more
Click the above “Beginner’s Visual Learning“, select to add “Star” or “Top“ Important content delivered first hand This article is a collection of Python codes for various robotics algorithms, particularly for autonomous navigation. Its main features include: widely used algorithms in practice; minimal dependencies; easy to read and understand the basic ideas of each algorithm. … Read more
Linux memory is a computer resource that backend developers need to understand deeply. Proper use of memory helps improve machine performance and stability. This article mainly introduces the organization structure and page layout of Linux memory, the causes of memory fragmentation and optimization algorithms, various memory management methods in the Linux kernel, memory usage scenarios, … Read more
Abstract: With the development of computer technology and sensing technology, location-based services (LBS) have gradually become a research hotspot. Based on a ZigBee indoor positioning system designed using Texas Instruments CC2530 chip, a weighted nearest neighbor positioning algorithm based on fuzzy clustering is proposed, and experiments are conducted using the designed ZigBee indoor positioning system. … Read more
The DSP system (Digital Signal Processor system) is one of the commonly used electronic systems by many electronic engineers. To master the DSP system, the algorithms involved cannot be overlooked. Below, we will discuss the common algorithms and principles of DSP systems, hoping to help everyone. 1. Discrete Signals and Systems Principle: Discrete signals and … Read more
Huazhong University of Science and Technology IT Home hkithome The official WeChat platform of the School of Computer Science, North China University of Science and Technology, focused on technological innovation, dedicated to resource sharing, the latest updates from the college, fashionable and fun IT news, we have everything you want to know! Algorithms are the … Read more
Although C language has been developed for many years and is no longer as popular, it remains one of the most widely used low-level languages. Whether it’s C++ or microcontrollers, C language algorithms are essential. Below are 15 C language algorithms that can help a beginner quickly master microcontrollers. 1. Sorting Algorithms There are many … Read more