Not-a-number - Factbites

Not-a-number - Factbites
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Topic: Not-a-number

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	Number - Wikipedia, the free encyclopedia
		This number is denoted by i, a symbol assigned by Leonhard Euler.
		The existence of complex numbers was not completely accepted until the geometrical interpretation had been described by Caspar Wessel in 1799; it was rediscovered several years later and popularized by Carl Friedrich Gauss, and as a result the theory of complex numbers received a notable expansion.
		However Pythagoras believed in the absoluteness of numbers, and could not accept the existence of irrational numbers.
	en.wikipedia.org /wiki/Number (3652 words)

	P-adic number - Wikipedia, the free encyclopedia
		This is analogous to two's complement notation in computer science, in which negative integers are coded with the leftmost bit being set to 1: in the 2-adic integers, negative integers will correspond to numbers in which all lefthand digits are eventually equal to 1 (in general, p − 1 for p-adic numbers).
		In particular, the space of p-adic integers is compact while the space of p-adic numbers is not; it is only locally compact.
		of p-adic numbers is an extension field of the rational numbers.
	en.wikipedia.org /wiki/P-adic_numbers (2377 words)

	What's Special About This Number?
		is the smallest number with the property that it and its neighbors are not cubefree.
		is the number of planar partitions of 10.
		is the number of planar partitions of 11.
	www.stetson.edu /~efriedma/numbers.html (7399 words)

	Grammatical number - Wikipedia, the free encyclopedia
		The distinction between a "singular" number (one) and a "plural" number (more than one) found in English is not the only possible classification.
		English does not distinguish among dual, trial, or paucal number.
		In terms of pronunciation, however, the majority of nouns (and adjectives) are not actually declined for number.
	en.wikipedia.org /wiki/Grammatical_number (1952 words)

	number definition - Dictionary - MSN Encarta
		Number is a collective noun that can take a singular or plural verb depending on how you use it.
		Careful writers distinguish between quantity ("an amount of something") and number ("a total or estimated total of persons or things that can be individually counted"), as in A large number [better than quantity] of people had gathered in the square.
		Therefore, you must use a singular verb with number preceded by "the": The number of lab coats available is limited.
	encarta.msn.com /encnet/features/dictionary/DictionaryResults.aspx?refid=1861684086 (493 words)

	11: Number theory
		Number theory is one of the oldest branches of pure mathematics, and one of the largest.
		Questions in algebraic number theory often require tools of Galois theory; that material is mostly a part of 12: Field theory (particularly the subject of field extensions).
		For example, "additive number theory" asks about ways of expressing an integer N as a sum of integers a_i in a set A. If we set f(z) = Sum exp(2 pi i a_i z), then f(z)^k has exp(2 pi i N z) as a summand iff N is a sum of k of the a_i.
	www.math.niu.edu /~rusin/known-math/index/11-XX.html (2572 words)

	Oxidation Number Encyclopedia Article @ NaturalResearch.org (Natural Research)
		In chemical nomenclature, the oxidation number (formerly known as the Stock number) of an element in a molecule or complex is the charge that it would bear if all the ligands were removed along with the electron pairs that were shared with the central atom.
		The oxidation number is placed either as a right superscript to the element symbol, e.g.
		iron(III): in the latter case, there is no space between the element name and the oxidation number.
	www.naturalresearch.org /encyclopedia/Oxidation_number (342 words)

	What's a number?
		Given the difficulty of establishing whether a given number is algebraic or not, this was one of Cantor's early surprising results.
		2, being the length of the diagonal in a unit square, was the first number proved not to be rational.
		The set I of all irrational numbers is not countable.
	www.cut-the-knot.org /do_you_know/numbers.shtml (3529 words)

	: Class NUMBER
		The number is NOT rounded if more than preclen decimal digits must be placed in the number to meet the scale requirement.
		It will not effect the number but big will return true if this value is exceeded.
		java.sql.SQLException - on overflow/underflow of the Oracle Number exponent or mantissa.
	www.oracle.com /technology/hosted_doc/jdev/jdbc/oracle/sql/NUMBER.html (3669 words)

	Avogadro's Number
		The first actual estimate of the number of molecules in one cubic centimetre of a gas under standard conditions was made in 1865 by Loschmidt, and from this the number of molecules (atoms) in a gram molecule (atom) was later evaluated.
		This number is frequently referred to as "Avogadro's Number," the term "Loschmidt's Number" being then reserved for the number of molecules in a cubic centimetre of a gas under standard conditions.
		Avogadro's important hypothesis on the identity of the numbers of molecules in equal volumes of different gases at the same pressure and temperature was formulated in 1811, and is appropriately associated with his name; but Avogadro made no quantitative estimate of either of the above-mentioned constants.
	gemini.tntech.edu /~tfurtsch/scihist/avogadro.htm (962 words)

	XML Path Language (XPath)
		NOTE: The number function should not be used for conversion of numeric data occurring in an element in an XML document unless the element is of a type that represents numeric data in a language-neutral format (which would typically be transformed into a language-specific format for presentation to a user).
		If the result is a number, the result will be converted to true if the number is equal to the context position and will be converted to false otherwise; if the result is not a number, then the result will be converted as if by a call to the boolean function.
		In addition, the number function cannot be used unless the language-neutral format used by the element is consistent with the XPath syntax for a Number.
	www.w3.org /TR/xpath#section-String-Functions (8473 words)

	List of Elements By Number Encyclopedia Article @ LaunchBase.net (Launch Base)
		[209], indicates the mass number of the longest-lived isotope of the element or characteristic isotopic composition.
		A table of chemical elements ordered by atomic number and color coded according to type of element.
		Atomic weights of elements with atomic numbers 110-116 taken from this source.
	www.launchbase.net /encyclopedia/List_of_elements_by_number (427 words)

	Number: What Is "This Many?" -- Platonic Realms MiniText
		What it says is, the set of rational numbers is the set consisting of all numbers of the form p divided by q, where p and q are elements of the set of integers and q is not zero.
		Notice that there is not always a largest element; the set of all even numbers, the set of all multiples of 5, and the set of all the natural numbers greater than 37 are examples of sets that have no greatest element.
		The set of natural numbers has some properties that should be noted.
	www.mathacademy.com /pr/minitext/number (3230 words)

	What is number?
		Number is a grammatical category of nouns, pronouns, and verb agreement that expresses count distinctions (such as "one" or "more than one").
		The count distinctions typically, but not always, correspond to the actual count of the referents of the marked noun or pronoun.
		In the word girls, plural number is marked by the suffix -s.
	www.sil.org /linguistics/GlossaryOfLinguisticTerms/WhatIsNumber.htm (93 words)

	K-3 Number Activities at EnchantedLearning.com
		The numbers from one to twenty-two are used in the subtraction problems and the answers are the numbers from seven to thirteen.
		Draw and color numbers according to simple directions, such as, "In box number 2, use a blue crayon to write the numbers from 1 to 10, skipping every other number (these are even numbers).." Or go to the answers.
		The numbers from zero to ten are used in the subtraction problems and the answers are the numbers from zero to six.
	www.enchantedlearning.com /themes/123.shtml (1746 words)

	Patterns in Mathematics -- Number Patterns
		Working with number patterns leads directly to the concept of functions in mathematics: a formal description of the relationships among different quantities.
		When asked for the 50th number in the pattern, she will know to multiply 2 times 50.
		Mathematics is especially useful when it helps you predict, and number patterns are all about prediction.
	www.learner.org /teacherslab/math/patterns/number.html (357 words)

	PHP: number_format - Manual
		This is because the numbers generated by performing math are double precision (which means pretty darn accurate) and not perfect precision (which would be what you get when you do the math on paper).
		Since number_format() returns a string, numbers returned that DO NOT have a comma in them will still be added but numbers that DO have a comma will not be added because PHP considers them a string and ignores them.
		Please beware of negative numbers close to zero, as they might produce this unusable (and in my opinion incorrect/off-description) output.
	www.php.net /manual/en/function.number-format.php (1980 words)

	"Number" Word Problems
		Twice the larger of two numbers is three more than five times the smaller, and the sum of four times the larger and three times the smaller is
		This last piece of information comes from the fact that "consecutive integers" (or "consecutive whole numbers", if they're restricting the possibilities to only positive numbers) are one apart.
		First, you know that you are adding two numbers, and that they total to fifteen.
	www.purplemath.com /modules/numbprob.htm (484 words)

	NLVM Number & Operations Manipulatives
		Virtual manipulatives related to the NCTM Number and Operations standard.
		– Explore numbers, shapes, and logic by programming a turtle to move.
		– Illustrates arithmetic operations using a number line.
	nlvm.usu.edu /en/nav/topic_t_1.html (1298 words)

	Erdos Number Project
		This subpage has loads of information about the collaboration graph and Erdös numbers, including the distribution of Erdös numbers (they range up to 13, but the average is less than 5, and almost everyone with a finite Erdös number has a number less than 8) and “Erdös numbers of the second kind”.
		Erdös numbers have been a part of the folklore of mathematicians throughout the world for many years.
		The Facts about Erdös Numbers and Collaboration subpage has been updated to reflect 2004 information (it had been based on 2000 information).
	www.oakland.edu /enp (710 words)

	10 Downing Street website - Home
		Teachers and students gathered in Number 10 this week for a special reception in honour of the further education sector.
	www.number-10.gov.uk (303 words)

	Vessel Documentation Query by ID
		Please enter the six- or seven-digit USCG identification number in the box below and click on the submit button to retrieve vessel data (data current as of December 4, 2004).
		Craft less than 5 net tons ("boats") are numbered by individual states.
		Refer to our vessel documentation page for information about who collects vessel documentation data, the type of data collected and for the authorization and rationale for publishing these data.
	www.st.nmfs.gov /st1/commercial/landings/cg_vessels.html (232 words)

	Amazon.ca: Number: Search Results Books
		Number Theory : An Introduction to Mathematics: Part B -- by William A. Coppel (Author)
		The Number : A Completely Different Way to Think About the Rest of Your Life -- by Lee Eisenberg (Author)
		The Number : A Completely Different Way to Think About the Rest of Your Life
	www.amazon.ca /exec/obidos/external-search?tag=bookstore0e86-20&keyword=Number&mode=books (278 words)

	Name of a Number
		To put a sane limit on amount of HTTP traffic that large numbers can generate, the number.cgi CGI script limits the size of numbers it will process.
		numbers of any size, run the program in non-CGI mode as number.
		To run it in CGI mode for a web site, rename it as number.cgi.
	www.isthe.com /chongo/tech/math/number/number.html (161 words)

	Imaginary number - Wikipedia, the free encyclopedia
		Geometrically, imaginary numbers are found on the vertical axis of the complex number plane, allowing them to be presented orthogonal to the real axis.
		One way of viewing imaginary numbers is to consider a standard number line, positively increasing in magnitude to the right, and negatively increasing in magnitude to the left.
		Imaginary numbers were defined in 1572 by Rafael Bombelli.
	en.wikipedia.org /wiki/Imaginary_number (678 words)

	Number World ....... - :::.Sh@uRya'z.::: One Site Million Options
		1575 is the number of partitions of 24.
		3010 is the number of partitions of 27.
		1958 is the number of partitions of 25.
	shaurya.exocrew.com /forum/index.php?showtopic=2119 (9841 words)

	USATODAY.com - Online encyclopedia tightens rules following false article
		Wales said he hopes the registration requirement will limit the number of articles being created.
		The volume is possible because the site relies on volunteers, including many experts in their fields, who submit entries and edit previously submitted articles.
	www.usatoday.com /tech/news/techpolicy/2005-12-05-wiki-rules_x.htm (744 words)

	What does your phone number spell?
		Enter a 6 to 10 digit phone number and we'll show you what words and phrases your phone number spells to help you decide if you want to keep it.
		Pick a new 7 or 8 digit phone number by typing in an available exchange (first 3 to 5 digits) and see what one-word numbers you can choose from.
		You may have heard that now you can take your phone number with you when you move.
	www.phonespell.org (240 words)

	Number 2 Pencil
		As you've probably noticed, my posting on Number 2 Pencil has been sporadic as of late.
		After much thought, I've decided to cease production on Number 2 Pencil.
		I'm keeping the domain, the site, and the archives active, so that my posts are still out there for the reader's enjoyment, but I don't intend for there to be any future posts in this location.
	www.kimberlyswygert.com (760 words)

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