NaN - Wikipedia Quiet NaNs are used to propagate errors resulting from invalid operations or values Signaling NaNs can support advanced features such as mixing numerical and symbolic computation or other extensions to basic floating-point arithmetic
NaN - JavaScript | MDN - MDN Web Docs To tell if a value is NaN, use Number isNaN() or isNaN() to most clearly determine whether a value is NaN — or, since NaN is the only value that compares unequal to itself, you can perform a self-comparison like x !== x
Understanding NaN (Not a Number) - w3resource NaN stands for "Not a Number" and is a value that indicates an undefined or unrepresentable result in numerical computations It is commonly found in programming languages like JavaScript, Python, and others when operations fail to produce a valid numeric value
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JavaScript NaN - W3Schools In JavaScript, NaN is short for Not a Number NaN is a JavaScript number that is not a legal number
What is NaN? Not a Number Definition Programming Uses NaN is a special floating-point value that represents “Not a Number” – a result that occurs when a mathematical operation produces an undefined or unrepresentable numerical outcome
floating point - Why is NaN not equal to NaN? - Stack Overflow NaN is designed to propagate through all calculations, infecting them like a virus, so if somewhere in your deep, complex calculations you hit upon a NaN, you don't bubble out a seemingly sensible answer