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.

NAN has been marching and fighting for civil rights since 1991. Watch previous speeches from political leaders like Barack Obama, Joe Biden & Kamala Harris, as well as interviews with our …

6 天之前 · 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 the …

2023年5月9日 · 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 …

2022年3月31日 · 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 …

2023年6月8日 · NaN (Not a Number) is a numeric data type that means an undefined value or value that cannot be represented, especially results of floating-point calculations.

2025年3月31日 · 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 …

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.

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 …

2021年9月29日 · The call nan ("string"), where string is neither an n-char-sequence nor an empty string, is equivalent to the call /*strtoX*/ ("NAN", (char **) NULL);. 1) The parsing function is …