nan value

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[Unity3d] questions about Nan (not a number)

When the game is running, code that is unsafe to write is prone to Nan exceptions. Once Nan appears the entire game does not collapse also necrosis, the game is to be directly beat back the rhythm, is a development and testing personnel each have to

Nan and INF usage in C language

This paper summarizes the meaning, generation and judging methods of Nan and INF in C language. Nan in the C language means not a number, which is equivalent to #IND: indeterminate (Windows) generates:An undefined operation was performed on a

Why is NaN not equal to itself?

Nan is ' not a number ', is not a digit, so what is Nan exactly? In JavaScript, there are 6 big data types, including String,number,boolean,undefined,null and object, and for JS, integers and floating-point numbers are collectively referred to as

Understanding correction of attribute nan and discrimination of Number.isnan () and IsNaN () method

1. Misunderstanding correction of attribute NanNan (not a number) defines a non-numeric special value in the list of numbers, and it has an object that does not have the value of any non-numeric type equal to Nan, only if the arithmetic operation

Why Null==0 is false in JavaScript and null>=0 to True

At work we are constantly writing code, writing JavaScript, very little time for conceptual research. I have nothing to do today, I studied the relationship between "null" and "0". I hope you have seen the end of the harvest. Alert (null>=0) What

Usage and instance of JavaScript Nan

Nan is a value type, and it is also a number. It means not a number, and this all knows what it means. The value is special, especially if Nan is a digit and is a number that is not equal to any number. Three NaN valuesis a special value that

null, undefined, NaN in JavaScript

1. Judge whether each other is equalfunction Btnclick () {alert (null = = NULL);//true alert (undefined==undefined);//true alert (Nan==nan);//false}Summarize:(1) Two null is equal(2) Two undefined are equal(3) Two Nan is unequalfunction Btnclick () {

Infinity (Infinity) and Nan in Java

1, i = = i + 1A number never equals its own plus 1? Java enforcement requires the use of IEEE 754 floating-point arithmetic operations [IEEE 754], which allows you to represent infinity with a double or float. As we learned in school, Infinity plus 1

Strictly judge NaN in JavaScript, while javascript judges nan

Strictly judge NaN in JavaScript, while javascript judges nan I also encountered this question on FreeCodeCamp: Delete all values in the array. In JavaScript, the false values include false, null, 0, "", undefined, and NaN. For NaN judgment, JS

5.2 infinity and Nan

5.2 infinity and Nan IEEE 754 floating point numbers can represent positive or negative infinity, andNan(Not a number ). these three values arise from calculations whose result is undefined or cannot be represented accurately. you can also

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