With the continuous development of computer technology, more and more programming languages are emerging, and one of the most eye-catching languages is Golang. Golang is a programming language developed by Google. It aims to improve the development efficiency of programmers and the running efficiency of programs. It also has certain open source features. In this article, we will focus on division operations in Golang.
First of all, let us recall the basics of mathematics in middle school - the definition of division operation: the process of dividing the divisor by the dividend to obtain the quotient and remainder. For example, when we divide 8 by 3, the quotient is 2 and the remainder is 2. But in Golang, the method of division operation is not as simple as in middle school. The reason is that the division calculation methods are different between different data types.
For integer division operations, in Golang, when the divisor and dividend are both integer types, the calculation result will also be an integer type. The division operation at this time is not like that in middle school mathematics. Quotient and remainder forms. Instead, it will simply round down, returning the integer part of the quotient. For example, when calculating 7/3, it will result in 2. Like other languages, integer division operations in Golang can also cause overflow problems. When the dividend is a particularly large number and the divisor is very small, it may cause the Golang program to directly panic. In this case, special care is required.
The next step is the division operation of floating point numbers. Unlike the case with integers, division operations can never overflow when one side of the operator is a floating point number. For example, when calculating 2.5/5, the result we get will be 0.5. Like other languages, it is possible to divide floating point types by 0 in Golang, and the result is positive infinity or negative infinity.
In addition to the above two situations, there is also a special situation in Golang, which is the situation where there is a negative number in the divisor or dividend. In this case, Golang's division operation may return a smaller value than the result we expect. For example, when calculating -7/3, Golang will return the integer part of the quotient as -3. If we want to get the integer part of the quotient to be -2, we can use the Ceil() function in the math package to calculate it. The Ceil() function is used to round up and is relatively simple to use.
To sum up, the division operation in Golang is different from the division operation we learned in middle school, and the operation methods of different data types are also different. At the same time, when performing division operations, you need to be particularly careful about negative numbers and hardware overflow issues. After learning the above knowledge, we can better use Golang's division operation, and at the same time, we can better understand the operation rules and characteristics of this language.
The above is the detailed content of Discuss Golang's division operation. For more information, please follow other related articles on the PHP Chinese website!

This article explains Go's package import mechanisms: named imports (e.g., import "fmt") and blank imports (e.g., import _ "fmt"). Named imports make package contents accessible, while blank imports only execute t

This article explains Beego's NewFlash() function for inter-page data transfer in web applications. It focuses on using NewFlash() to display temporary messages (success, error, warning) between controllers, leveraging the session mechanism. Limita

This article details efficient conversion of MySQL query results into Go struct slices. It emphasizes using database/sql's Scan method for optimal performance, avoiding manual parsing. Best practices for struct field mapping using db tags and robus

This article demonstrates creating mocks and stubs in Go for unit testing. It emphasizes using interfaces, provides examples of mock implementations, and discusses best practices like keeping mocks focused and using assertion libraries. The articl

This article explores Go's custom type constraints for generics. It details how interfaces define minimum type requirements for generic functions, improving type safety and code reusability. The article also discusses limitations and best practices

This article details efficient file writing in Go, comparing os.WriteFile (suitable for small files) with os.OpenFile and buffered writes (optimal for large files). It emphasizes robust error handling, using defer, and checking for specific errors.

The article discusses writing unit tests in Go, covering best practices, mocking techniques, and tools for efficient test management.

This article explores using tracing tools to analyze Go application execution flow. It discusses manual and automatic instrumentation techniques, comparing tools like Jaeger, Zipkin, and OpenTelemetry, and highlighting effective data visualization


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

SublimeText3 Mac version
God-level code editing software (SublimeText3)

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

Zend Studio 13.0.1
Powerful PHP integrated development environment
