What does Nan stand for?
NaN, an acronym for Not a Number is an exception that usually occurs in the cases when an expression results in a number that is undefined or can’t be represented. It is used for floating-point operations. For example: The square root of negative numbers; Division by zero; Taking the log of zero or a negative number etc.
What does Nan mean in English?
nan in British English (næn ), nana or nanna (ˈnænə ) a child’s words for grandmother. Collins English Dictionary. Is Nan a mother or grandma? When used as nouns, grandmother means a mother of someone’s parent, whereas nan means a grandmother.
What does Nan mean in coding?
What does NaN mean in code? NaN means "Not a Number" and is the result of undefined operations on floating point numbers like for example dividing zero by zero. (Note that while dividing a non-zero number by zero is also usually undefined in mathematics, it does not result in NaN but in positive or negative infinity).
What does it mean by Nan?
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. Even when this is not the case, avoid overriding it.
What does NaN mean slang?
It means "not one" or "not any" or "none."
Is NaN a real word?
Yes, nan is in the scrabble dictionary.
What does no NaN mean?
[no´nan] recurring on the ninth day (every eight days).
What does NaN mean social media?
Not A Number. showing only Slang/Internet Slang definitions (show all 20 definitions)
Is NaN A British word?
From Longman Dictionary of Contemporary Englishnan1 /næn/ (also nanna) /ˈnænə/ noun [countable] British English informal grandmother – used by children SYN nannyExamples from the Corpusnan• Giggling Sheila his nan called her.
Is NaN grandma?
The word nan for grandma is a shortening of the word nana. Both of these words probably are child pronunciations of the word nanny. Etymonline describes this word as originating as a child's word for "female adult other than mother".
Does NaN mean mom?
Definitions include: a grandmother. Definitions include: mom aka "mother". Definitions include: acronym for "baby mother", i.e. the mother of a male's child. Definitions include: acronym for "mothers of preschoolers".
What does NaN mean in business?
NAN. National Attorney Network. showing only Business & Finance definitions (show all 20 definitions)
Is NaN a woman?
Nan is a ♀ girl's name....Nan.Hyphenation:NanCharacter length:3Popularity:12349Girl namesGirl names with NNamesNames with NShort girl namesShort names1 more row•Apr 13, 2022
What does NaN stand for on Facebook?
Sometimes Facebook doesn't register the mileage that folks put into their listing properly and writes "NaN" (not a number). So they either have to edit the listing or adjust how they entered the values.
What does NaN mean on Linkedin?
Not a Number (NaN)
What does nan mean in math?
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.
When was the NaN introduced?
Systematic use of NaNs was introduced by the IEEE 754 floating-point standard in 1985, along with the representation of other non-finite quantities such as infinities . In mathematics, zero divided by zero is undefined as a real number, and is therefore represented by NaN in computing systems. The square root of a negative number is not ...
What is a signaling NAN?
Signaling NaNs, or sNaNs, are special forms of a NaN that, when consumed by most operations, should raise the invalid operation exception and then, if appropriate, be "quieted" into a qNaN that may then propagate. They were introduced in IEEE 754. There have been several ideas for how these might be used:
What is the predicate for a NaN operand?
The other standard comparison predicates are all signaling if they receive a NaN operand. The standard also provides non-signaling versions of these other predicates. The predicate isNaN ( x) determines if a value is a NaN and never signals an exception, even if x is a signaling NaN.
What is the predicate for comparing with a NaN?
A comparison with a NaN always returns an unordered result even when comparing with itself. The comparison predicates are either signaling or non-signaling on quiet NaN operands; the signaling versions signal the invalid operation exception for such comparisons. The equality and inequality predicates are non-signaling so x = x returning false can be used to test if x is a quiet NaN. The other standard comparison predicates are all signaling if they receive a NaN operand. The standard also provides non-signaling versions of these other predicates. The predicate isNaN ( x) determines if a value is a NaN and never signals an exception, even if x is a signaling NaN.
What is a quiet NAN?
Quiet NaN. Quiet NaNs, or qNaNs, do not raise any additional exceptions as they propagate through most operations. The exceptions are where the NaN cannot simply be passed through unchanged to the output, such as in format conversions or certain comparison operations.
Is NaN the same as infinity?
In floating-point calculations, NaN is not the same as infinity, although both are typically handled as special cases in floating-point representations of real numbers as well as in floating-point operations.
How to use "nan" in a sentence?
Families were sitting picnic-style, meals of lamb and rice on large plates, scooped up with the flat bread nan.
When did Nan Shi lose her job?
On July 8, a summons was sent to Zhang alerting her to the lawsuit, and on July 11 , Nan Shi lost her job. American photographer Nan Goldin shot the campaign; the release date has not yet been announced.
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What does nan mean in math?
NaN. Stands for "Not a Number.". NaN is a term used in mathematics and computer science to describe a non-numeric value. It may also be a placeholder for an expected numeric result that cannot be defined as a floating point number. There are two primary types of ways in which NaN may be generated: 1) a mathematical calculation and 2) ...
Why does a calculation produce a NAN?
The following mathematical calculations produce NaN because the result is undefined: When a calculation involves a character, string, or other non-numeric value, the result may also be NaN. For example, 20 x "horse" does not produce a numeric result since 20 is an integer and "horse" is a string.
What is Qhapaq Nan?
Qhapaq Nan, the Andean Road System, is an extraordinary road network through one of the world's most extreme geographical terrains used over several centuries by caravans, travellers, messengers, armies and whole population groups amounting up to 40,000 people. Celebrating Peru's Qhapaq Nan. NAN had also reported that the management of some ...
Who was Nan's only living relative?
ached she It had been left to Kay, Nan 's only living relative, to break the news that she was going straight into a care home after hospital due to her failing vision, and that her bungalow would have to be sold. the flower box; Now Nan could take a little patch of garden with her.
Why does Nan go on vacation with Martin?
In the second half of the finale, Nan goes on a vacation with Martin to take a break from the pressures of a major decision at work and the mess she's made of her life.
Acronyms & Abbreviations
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Overview
Function definition
There are differences of opinion about the proper definition for the result of a numeric function that receives a quiet NaN as input. One view is that the NaN should propagate to the output of the function in all cases to propagate the indication of an error. Another view, and the one taken by the ISO C99 and IEEE 754-2008 standards in general, is that if the function has multiple arguments and the output is uniquely determined by all the non-NaN inputs (including infinity), then that val…
Floating point
In floating-point calculations, NaN is not the same as infinity, although both are typically handled as special cases in floating-point representations of real numbers as well as in floating-point operations. An invalid operation is also not the same as an arithmetic overflow (which might return an infinity) or an arithmetic underflow (which would return the smallest normal number, a subnormal number, or zero).
Integer NaN
Most fixed-size integer formats cannot explicitly indicate invalid data. In such a case, when converting NaN to an integer type, the IEEE 754 standard requires that an invalid operation exception be signaled. For example in Java, such operations throw instances of java.lang.ArithmeticException. In C, they lead to undefined behavior, but if annex F is supported, the operation yields an "invalid" floating-point exception (as required by the IEEE standard) and a…
Display
Different operating systems and programming languages may have different string representations of NaN.
Since, in practice, encoded NaNs have a sign, a quiet/signaling bit and optional 'diagnostic information' (sometimes called a payload), these will occasionally be found in string representations of NaNs, too. Some examples are:
Encoding
In IEEE 754 standard-conforming floating-point storage formats, NaNs are identified by specific, pre-defined bit patterns unique to NaNs. The sign bit does not matter. Binary format NaNs are represented with the exponential field filled with ones (like infinity values), and some non-zero number in the significand field (to make them distinct from infinity values). The original IEEE 754 standard from 1985 (IEEE 754-1985) only described binary floating-point formats, and did not sp…
External links
• Not a Number, foldoc.org
• IEEE 754-2008 Standard for Floating-Point Arithmetic (subscription required)
• IEEE 754-2019 Standard for Floating-Point Arithmetic (subscription required)