What does NaN stand for in computing?

(2) (NaN) (Not A Number) An undefined value, mostly occurring when a non-floating point number is computed by a floating point operation.

What is the function of NaN?

The isNaN() function determines whether a value is an illegal number (Not-a-Number). This function returns true if the value equates to NaN. Otherwise it returns false.

What gives NaN?

The basic rule is: If the implementation of a function commits one of the above sins, you get a NaN. For fft , for instance, you’re liable to get NaN s if your input values are around 1e1010 or larger and a silent loss of precision if your input values are around 1e-1010 or smaller.

What is NaN in Java?

In Java, “NaN” stands for “not a number” and signifies that a value is not defined. “NaN” is not an exception error, but a value that is assigned. For example, imaginary numbers like the square root of negative numbers or zero divided by zero will both print “NaN” as the result. Take a look at the example below.

What does NaN in Matlab mean?

Not a Number
MATLAB represents values that are not real or complex numbers with a special value called NaN , which stands for “Not a Number”. Expressions like 0/0 and inf/inf result in NaN , as do any arithmetic operations involving a NaN : x = 0/0 x = NaN.

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.

Is NaN a string Java?

NaN generally means that the value is something that cannot be expressed with a valid floating point number. A conversion will result in this value, when the value being converted is something else, for example when converting a string that does not represent a number.

How do I replace NaN with zero in MATLAB?

Direct link to this answer

1. clear all.
2. A(isnan(A))=0;
3. \%\%\%\% an example.
4. A=rand(3);
5. A([2 3],2)=NaN;
6. A(isnan(A))=0;