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In a recent project to use JS to realize the function of automatic calculation, this thought just to achieve simple addition, subtraction, multiplication, except on it, so rinsed finished.Just when I was happy, I found the problem ...When doing some

visit http://qinshenxue.com/article.aspx?id=1 View latest Articles Description As we all know, JS in the calculation of floating-point numbers, the results may not be accurate. For example: (the result of the operation in Chrome)2.2 + 2.1 = 4.30000

DescriptionAs we all know, JS calculates the floating-point number, the result may be inaccurate. For example: (Results of the calculations in Chrome)2.2 + 2.1 = 4.3000000000000012.2-1.9 = 0.300000000000000272.2 * 2.2 = 4.8400000000000012.1/0.3 = 7.0

Here to monitor memory usage as an example, write a simple demo program, the specific operation according to the 51reboot provided by the tutorial written as follows. First, build a database to build a table To create a Falcon database: Mysql>

There are many open-source monitoring systems on the market: Cacti, Nagios, Zabbix. Don't feel like I need to, why not do it yourself Two hours with Python hand-off a simple monitoring system, to share with you, I hope to be able to inspire

Beijing start technology front-end researcher, focus on sharing HTML5 app rapid development tools WeX5 black Magic and the corresponding front-end technology. ObjectiveThe use of reptiles can do a lot of things, single men can use reptiles to

Here to monitor memory usage as an example, write a simple demo program, the specific operation according to the 51reboot tutorials written below. First, the establishment of a database to build tables To create a Falcon database: Mysql> CREATE

JS Code Copy Code code as follows: [Code] According to normal calculation, except the first line (because it can not be removed), the other should be accurate results, from the pop-up results we find that is not the correct result

A simple monitoring system written in Python This article mainly introduces a simple monitoring system written in Python. This article describes the detailed Encoding steps and provides the corresponding implementation code. For more information,

Js Code Copy codeThe Code is as follows: [Code] In normal calculation, except for the first line (because it cannot be used apart), the rest should get accurate results, from the pop-up results, we found that it was not the correct result we

This article mainly introduces the python written a simple monitoring system, this article explains the detailed coding steps, and give the corresponding implementation code, need friends can refer to the following There are many open source

Before writing the project, directly to the data with the decimal point operation, found that the resulting value is not what you want.After a series of studies, found in JavaScript, floating-point arithmetic is first converted to binary, in the

[Javascript] varST & quot; 2010-5-139: 22: 10 & quot;, // start time: ET & quot; 2010-5-& quot ;, // startTimeMyFormatTime (ST ). getTime (), endTimeMyFormatTime (ET ). getTime (); I [Javascript]Var ST = "9:22:10", // start timeET = "9:22:11", //

Ad code static js common functions /* JavaScript Document Ad code static js common functions In principle, each page should not have a fixed domain name point. */ /* Config */ Var sSiteUrl = "http://www.spvjoy.com "; // Var sSiteUrl = "http: // 192.1

To do machine learning, you need to have data first. Data set processing is the basis of machine learning. This article will show you how to use Python's own CSV module for some simple dataset processing. Task Processes the specified semeval file

Complete implementation and application of the js client shortcut key management class. For more information, see. The Code is as follows: // A shortcut key objectFunction KeyOne (id, keys, dom, isfun, fun, iskeydown ){This. id = id;This. keys =

Javascript (js) decimal point addition, subtraction, multiplication, division, is a js bug such as 0.3*1 = 0.2999999999, the following lists the four js algorithms that can perfectly find the corresponding precision // division function accDiv (arg1,

In javascript, when you use decimal places for addition, subtraction, multiplication, division, you will find that the result is sometimes followed by a long decimal point, which makes the operation complex and affects the calculation result. The

In javascript, there will always be many decimal places during data operations with decimal places. this is because in javascript, floating point numbers are calculated in binary notation. In javascript, when you use decimal places for addition,

Copy codeThe Code is as follows:// For example, if the 7*0.8 JavaScript code is calculated as follows: 5.6000000000000005 // Addition function, used to obtain accurate addition results// Note: The addition result of javascript has an error, which is