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  1. NaN - Wikipedia

    In computing, NaN (/ næn /), standing for Not a Number, is a particular value of a numeric data type (often a floating-point number) which is undefined as a number, such as the result of 0/0.

  2. NaN - JavaScript | MDN - MDN Web Docs

    Apr 3, 2025 · NaN is a property of the global object. In other words, it is a variable in global scope. In modern browsers, NaN is a non-configurable, non-writable property. Even when this is not …

  3. NAN - cppreference.com

    Mar 31, 2022 · The macro NAN expands to constant expression of type float which evaluates to a quiet not-a-number (QNaN) value. If the implementation does not support QNaNs, this macro …

  4. What is a Nan? - Computer Hope

    Nov 13, 2018 · What is a Nan? Short for Not a Number, in mathematics and computer programming NaN is an undefined or unrepresentable value, especially in floating-point …

  5. 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 …

  6. JavaScript NaN Property - W3Schools

    In JavaScript, NaN is short for "Not-a-Number". In JavaScript, NaN is a number that is not a legal number. The Global NaN property is the same as the Number.Nan property.

  7. Understanding NaN: A Comprehensive Guide to Not-a-Number in …

    Oct 11, 2024 · NaN is a special floating-point value used by various programming languages and applications to represent a mathematically undefined or unrepresentable number. The concept …

  8. JavaScript NaN Property - GeeksforGeeks

    Nov 11, 2024 · NaN, which stands for "Not a Number," is a special value in JavaScript that shows up when a mathematical operation can't return a valid number. This can happen if you try …

  9. NaN -- from Wolfram MathWorld

    Jun 18, 2025 · In the IEEE 754-2008 standard (referred to as IEEE 754 henceforth), NaN (or "not a number") is a symbolic floating-point representation which is neither a signed infinity nor a …

  10. What is nan in Python (float('nan'), math.nan, np.nan)

    May 9, 2023 · In Python, the float type has nan. nan stands for "not a number" and is defined by the IEEE 754 floating-point standard. In the sample code of this article, math, pandas, and …