Course 2857
Course Introduction:Course introduction: 1. Cross-domain processing, token management, route interception; 2. Real interface debugging, API layer encapsulation; 3. Secondary encapsulation of Echarts and paging components; 4. Vue packaging optimization and answers to common problems.
Course 1795
Course Introduction:Apipost is an API R&D collaboration platform that integrates API design, API debugging, API documentation, and automated testing. It supports grpc, http, websocket, socketio, and socketjs type interface debugging, and supports privatized deployment. Before formally learning ApiPost, you must understand some related concepts, development models, and professional terminology. Apipost official website: https://www.apipost.cn
Course 5521
Course Introduction:(Consult WeChat: phpcn01) The comprehensive practical course aims to consolidate the learning results of the first two stages, achieve flexible application of front-end and PHP core knowledge points, complete your own projects through practical training, and provide guidance on online implementation. Comprehensive practical key practical courses include: social e-commerce system backend development, product management, payment/order management, customer management, distribution/coupon system design, the entire WeChat/Alipay payment process, Alibaba Cloud/Pagoda operation and maintenance, and project online operation. .....
Course 5172
Course Introduction:(Consult WeChat: phpcn01) Starting from scratch, you can solve conventional business logic, operate MySQL with PHP to add, delete, modify, and query, display dynamic website data, master the MVC framework, master the basics of the ThinkPHP6 framework, and learn and flexibly master all knowledge involved in PHP development. point.
Course 8713
Course Introduction:(Consult WeChat: phpcn01) The learning objectives of the front-end development part of the 22nd issue of PHP Chinese website: 1. HTML5/CSS3; 2. JavaScript/ES6; 3. Node basics; 4. Vue3 basics and advanced; 5. Mobile mall/ Website background homepage layout; 6. Automatic calculation of tabs/carousels/shopping carts...
Align decimal points of numbers in table with pseudo "center" alignment appearing in cells
2023-10-24 13:01:47 0 1 266
Floating-point mathematics: Is it fundamentally flawed?
2023-10-11 16:33:56 0 2 287
Have a problem with floating point math?
2023-10-11 15:44:28 0 2 234
2023-09-07 10:08:44 0 1 247
Select MySQL only if floating point number changes
2023-09-04 00:01:04 0 1 301
Course Introduction:在 C 语言中,可以通过使用 printf() 函数,round() 函数或 fmod() 和 pow() 函数来取浮点数的小数点。
2024-05-25 comment 0 934
Course Introduction:PHP floating point decimal comparison: why not equal? In programming, we often encounter situations where we need to compare whether two floating point decimals are equal. However, when we use PHP to compare floating point decimals, we often find that two seemingly equal floating point numbers are not equal due to precision issues. This situation is often confusing. This article will delve into the issue of floating point number comparison in PHP and give specific code examples to illustrate why unequal situations occur when floating point numbers are compared. In computers, floating point numbers are represented in binary. Since binary
2024-03-08 comment 840
Course Introduction:Python 中可使用 print() 函数输出浮点数。浮点数是小数点数字,表示实数或分数。语法:print(浮点数)。可使用 format() 函数格式化浮点数,例如,保留两位小数:print("{浮点数:.2f}"). 还可使用 format string 以 f 结尾的字符串,并包含浮点数占位符,例如:print(f"{浮点数:.2f}").
2024-06-01 comment 543
Course Introduction:Float is the abbreviation of "floating point number". By definition, it is a basic data type built into the compiler for defining numerical values with floating decimal points. Floating-point type variables are variables that can hold real numbers, such as 4320.0, -3.33, or 0.01226. The floating point part of the name refers to the fact that the decimal point can "float", that is, it can support a variable number of numbers before and after the decimal point. float class type minimum size typical size float float4 bytes 4 bytes double8 bytes 8 bytes longdouble8 bytes 8, 12 or 16 bytes float range size range precision 4 bytes ±1.18x10-38to±3.4x1
2023-09-14 comment 0 610
Course Introduction:Under normal circumstances, PHP's floating point array sum is very simple, just use the array_sum() function. However, in some special cases, floating-point array summation errors may occur. This situation is usually caused by floating-point precision issues. So, how to solve the floating point array sum error? First, let's take a look at the issue of floating point number precision. In computers, floating point numbers are stored in binary form, but there are some decimals that cannot be represented by limited binary numbers. For example, decimals like 0.1 are stored in binary.
2023-05-07 comment 0 427