Table of Contents 1. General Commands 2. Operators 3. Programming Language Constructs 4. Basic Matrix Functions and Operations 5. Basic Mathematical Functions 6. Coordinate Transformations, Vector Operations, and Other Special Functions 7. Matrix Functions and Numerical Linear Algebra 8. Data Analysis 9. Polynomials, Nonlinear Equations, and Ordinary Differential Equations 10. Plotting Functions 11. File Operations … Read more
In today’s rapidly developing era of industrial automation, PLC (Programmable Logic Controller) has become the core control device in the field of industrial automation due to its powerful functions, high reliability, and flexibility. For engineers new to the industry, mastering the PLC control system project development process is a crucial step into this field. A … Read more
Learn programming with Lao Ma by “leveling up and fighting monsters”! Exams involved: Computer Society Programming Ability Level Certification (GESP), Electronics Society Level Examination Activity content: Provide real exam questions of different levels for students to choose for practice Preparation advice: Choose corresponding questions based on your preparation level Additional value: Can be used as … Read more
Learn programming with Lao Ma by “leveling up and fighting monsters”! Involves examination: Computer Society Programming Ability Level Certification (GESP) Activity content: Provides real exam questions of different levels for students to choose for practice Preparation advice: Choose corresponding questions based on your preparation level Additional value: Can be used as preparation training for whitelist … Read more
1084 – Sum of Proper Divisors This program solves a mathematical problem: calculating the sum of all proper divisors of a number (excluding 1 and the number itself). How does the program work? First, the user inputs a number (for example, 20). The program will do the following: Add 4 and its corresponding 5 to … Read more
1. What is explicit? explicit is a C++ keyword It modifies constructors and type conversion functions Purpose: to prohibit implicit type conversions 2. What is the use of explicit?First, let’s look at the following example: class A{public: A(int x) { }}; void foo(A a) { } foo(10); // Valid, int implicitly converts to A By … Read more
In the world of C++ programming, we have always pursued more concise, flexible, and powerful expressions. The introduction of Lambda expressions is one of the significant gifts brought to us by C++11. It has fundamentally changed the way we define and use function objects, making the code more elegant and efficient. What are Lambda Expressions? … Read more
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Click the blueFollow usC++ Basic Knowledge 003 – Summary of Operators01Arithmetic Operators In C++, arithmetic operators are used to perform basic mathematical operations, including addition, subtraction, multiplication, and division. Below are some commonly used arithmetic operators and their usage: 02Compound Operators In C++, compound operators provide a convenient way to combine assignment operations with another … Read more
Mathematical functions are like the “magic buttons” of computers, helping to quickly perform complex calculations. However, to truly understand these functions, one must first learn the underlying mathematical concepts, then relate them to real-life scenarios, and finally examine their implementation in C++. 1. fabs — Absolute Value Mathematical Concept The absolute value represents the distance … Read more
Hello everyone! Today, we are going to discuss the historical changes of “keywords” in the C++ programming language. Don’t worry, if you’re a programming novice, I will explain everything in the simplest terms without bombarding you with a bunch of code. First, what is C++? C++ is a super popular programming language used for writing … Read more