usual number
11Prime number — Prime redirects here. For other uses, see Prime (disambiguation). A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a prime number is… …
12Algebraic number field — In mathematics, an algebraic number field (or simply number field) F is a finite (and hence algebraic) field extension of the field of rational numbers Q. Thus F is a field that contains Q and has finite dimension when considered as a vector… …
13Dibucaine number — Dibucaine, also known as cinchocaine, is an amino amide local anesthetic. It is commonly used as an agent for central neuraxial anesthesia in Great Britain. When administered to humans intravenously, it is capable of inhibiting the plasma… …
14Algebraic number theory — In mathematics, algebraic number theory is a major branch of number theory which studies the algebraic structures related to algebraic integers. This is generally accomplished by considering a ring of algebraic integers O in an algebraic number… …
15Complex number — A complex number can be visually represented as a pair of numbers forming a vector on a diagram called an Argand diagram, representing the complex plane. Re is the real axis, Im is the imaginary axis, and i is the square root of –1. A complex… …
16Split-complex number — A portion of the split complex number plane showing subsets with modulus zero (red), one (blue), and minus one (green). In abstract algebra, the split complex numbers (or hyperbolic numbers) are a two dimensional commutative algebra over the real …
17Business as Usual — Infobox Album | Name = Business as Usual Type = Album Artist = Men at Work Released = December 1981 (AUS), August 24 1982 (USA) Recorded = October 1981 Genre = New wave Rock Length = 38:11 Label = Columbia Producer = Peter McIan Reviews = *… …
18Cardinal number — This article describes cardinal numbers in mathematics. For cardinals in linguistics, see Names of numbers in English. In mathematics, cardinal numbers, or cardinals for short, are generalized numbers used to measure the cardinality (size) of… …
19P-adic number — In mathematics, the p adic number systems were first described by Kurt Hensel in 1897 [cite journal | last = Hensel | first = Kurt | title = Über eine neue Begründung der Theorie der algebraischen Zahlen | journal =… …
20List of UK Singles Chart Christmas number ones — Matt Cardle got the most recent Christmas number one with his Biffy Clyro cover When We Collide . In the United Kingdom, Christmas number one singles are those that are at the top of the UK Singles Chart on the week before Christmas Day. Novelty… …
