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.
Is Nan a real word?
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.
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.
Whats does NaN mean?
Not a NumberIn 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.
What does no NaN mean?
[no´nan] recurring on the ninth day (every eight days).
Is NaN a real word?
Yes, nan is in the scrabble dictionary.
What is a NaN in family?
Definitions of nan. noun. your grandmother. see more. type of: gran, grandma, grandmother, grannie, granny, nanna.
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".
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
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".
Can I use NaN in Scrabble?
NAN is a valid scrabble word.
Is NaN a proper noun?
Proper noun A diminutive of the female given name Agnes.
Where did the term nana come from?
nanny (n.) "children's nurse," 1795, from the widespread child's word for "female adult other than mother" (compare Greek nanna "aunt," and see nana). The word also is a nickname form of the fem. proper name.
What is NaN short for in Scotland?
Father, Grandfather, Grandmother etc. In Scotland we refer to our Grandmother as Granny or Gran....but I notice that English people use "Nan".
Should I be Nana or grandma?
Nana is the most common nickname for a Grandma in thirty-two states. But if someone doesn't call their grandmother Nana, odds are they do call her Grammy or Gram, as these are relatively popular alternatives to Grandma, as well.
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.
How does NAN work?
For example, if one starts with a NaN and adds 1 five times in a row, each addition results in a NaN, but there is no need to check each calculation because one can just note that the final result is NaN. However, depending on the language and the function, NaNs can silently be removed from a chain of calculations where one calculation in the chain would give a constant result for all other floating-point values. For example, the calculation x0 may produce the result 1, even where x is NaN, so checking only the final result would obscure the fact that a calculation before the x0 resulted in a NaN. In general, then, a later test for a set invalid flag is needed to detect all cases where NaNs are introduced (see Function definition below for further details).
How are NANs identified?
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 specify how the signaling/quiet state was to be tagged. In practice, the most significant bit of the significand field determined whether a NaN is signaling or quiet. Two different implementations, with reversed meanings, resulted:
What is the NAN in IEEE 754?
IEEE 754 NaNs are encoded with the exponent field filled with ones (like infinity values), and some non-zero number in the significand field (to make them distinct from infinity values); this allows the definition of multiple distinct NaN values, depending on which bits are set in the significand field, but also on the value of the leading sign bit (but applications are not required to provide distinct semantics for those distinct NaN values).
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 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.
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.
Where does the word "infant" come from?
The word "infant" comes from the Latin word "infans" which literally means "unable to speak; speechless."
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.
Why does a spreadsheet display a NAN?
Some spreadsheet and database programs display NaN or #NaN in a table cell when the cell formula has not received valid numeric input for the calculation.
Who plays Pepper in Nan?
Meanwhile, in attempt to reduce Nan's stress, Martin (voiced by Samm Hodges) tries to take out his sworn enemy, Pepper (Maria Bamford), but sees unexpected results.
What is the name of the river that flows through Thailand?
Nan. (nän) A river of western Thailand flowing about 630 km (390 mi) generally southward to join the Ping River and form the Chao Phraya.
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.
Why did Nan go straight to a care home?
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.
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)