# Blog

## Is NaN the same as Grandma? In computing, NaN (/næn/), standing for Not a Number, is a member of a numeric data type that can be interpreted as a value that is undefined or unrepresentable, especially in floating-point arithmetic

floating-point arithmetic
In computing, floating point operations per second (FLOPS, flops or flop/s) is a measure of computer performance, useful in fields of scientific computations that require floating-point calculations. For such cases, it is a more accurate measure than measuring instructions per second.
https://en.wikipedia.org › wiki › FLOPS
. ... In mathematics, zero divided by zero is undefined and is therefore represented by NaN in computing systems.

## What can cause NaN?

“Nan” is produced if a floating point operation has some input parameters that cause the operation to produce some undefined result. For example, 0.0 divided by 0.0 is arithmetically undefined. Finding out the square root of a negative number too is undefined.Jan 13, 2017

## What is the type of NaN?

The type of NaN , which stands for Not a Number is, surprisingly, a number. ... However, it is a numeric data type whose value cannot be represented using actual numbers. So, the name "Not a Number", doesn't mean that the value is not numeric. It instead means that the value cannot be expressed with numbers.Feb 21, 2017

## What is NaN output?

Answered 3 years ago · Author has 4.1K answers and 4M answer views. -nan is output from attempting to print a floating point variable's contents that is “Not A Number”. Certain bit representations in an IEEE floating point 2s-compliment variable do not represent an actual number.

## Is NaN True or false?

NaN is special in that it doesn't have a real value, so comparing it to itself doesn't return true. Essentially, NaN is equal to nothing, not even NaN . The only way to reliably compare something to NaN is using isNaN( value ) .Mar 24, 2014  ### What does NaN mean on tracking?

Answer. NaN is short for Not a Number. NaN indicates that the monitoring system is not receiving any numeric data.

### Is NaN type number?

By definition, NaN is the return value from operations which have an undefined numerical result. ... It is still a numeric data type, but it is undefined as a real number. NaN also represents any number outside of the ECMAScript domain of definition.Aug 11, 2016

### What are the two types of NaN?

In fact, IEEE 754 defines two types of NaN - a quiet NaN ( qNaN ) and a signalling NaN ( sNaN ). The most important difference between the two is that sNaN will cause an exception when used in arithmetic operations and qNaN won't.Aug 22, 2019

### Is NaN A number JS?

Tip: In JavaScript, the value NaN is considered a type of number.

### How do I check if Matlab is NaN?

TF = isnan( A ) returns a logical array containing 1 ( true ) where the elements of A are NaN , and 0 ( false ) where they are not. If A contains complex numbers, isnan(A) contains 1 for elements with either real or imaginary part is NaN , and 0 for elements where both real and imaginary parts are not NaN .

### How do I fix NaN code org?

Nan means “Not a number”, this is because inside your cube function, you're not calling the square function, but getting it's contents. Change return x * square; with return x * square(x); and it should work.

### What is NaN error?

NaN is an error value that means not a number. However, JavaScript considers the type of NaN to be number. Infinity is a value so big it can't be represented by JavaScript numbers.Mar 25, 2020

### Whats does NaN mean?

In computing, NaN (/næn/), standing for Not a Number, is a member of a numeric data type that can be interpreted as a value that is undefined or unrepresentable, especially in floating-point arithmetic.

### Is NaN A CPP?

Returns whether x is a NaN (Not-A-Number) value. The NaN values are used to identify undefined or non-representable values for floating-point elements, such as the square root of negative numbers or the result of 0/0. In C, this is implemented as a macro that returns an int value.

### What does Nan mean in C++?

• NaN, acronym for “Not a Number” is an exception which usually occurs in the cases when an expression results in a number that can’t be represented. For example square root of negative numbers. // C++ code to demonstrate NaN exception. #include .

### How to check if a number is NaN or not?

• Method 2 : Using inbuilt function “isnan ()”. Another way to check for NaN is by using “isnan ()” function, this function returns true if a number is complex else it returns false.

### What is the Nan property in JavaScript?

• The global NaN property is a value representing Not-A-Number. NaN is a property of the global object. In other words, it is a variable in global scope. The initial value of NaN is Not-A-Number — the same as the value of Number.NaN. In modern browsers, NaN is a non-configurable, non-writable property.

### What does Nanan mean in math?

• NaN, acronym for “Not a Number” is an exception which usually occurs in the cases when an expression results in a number that can’t be represented. For example square root of negative numbers.