# 1&1

1&1class="mw-headline" id="Etymologie">Etymologie[edit] A ( "1", also known as a moiety, moiety and (multiplicative) identity) is a number, number and lymph. This is a unique device, the device of metering or measuring. A line section of units length, for example, is a line section of length 1. It is also the first of the endless succession of numbers, followed by 2. Compare the proto-Germanic square roots *ainaz with Altfriesisch an, Gothic coins, Dansk coins, Netherlands coins, German coins and Altnordisch coins.

So it is the whole number before two and after zero and the first positively uneven number. Every number that is multiplicated by one stays this number, because one is the identities for the number. This is also the only number that is neither composed nor primary in relation to divide, but is regarded as a unity (meaning of ring theory).

Gupta would write it as a sweeping line, and the Nagari would sometimes add a small circular to the right (a crotchet turn to the right, this 9-look-alike became today's number 1 in the Gujarati and Punjabi scriptures). Sometimes in some counties the small Serife is lengthened up into a long serve, sometimes up to the upright line, which in other counties can cause mix-ups with the Glyph for Seven.

From a mathematical point of view, 1 is: in mathematics, in mathematics (algebra) and in tartar, the number that follows 0 and goes before 2, and the multi-plicative identifier of whole numbers, true numbers and complicated numbers; more generally, in mathematics, the multi-plicative identifier (also known as unit), usually a group or ring. Rather, this is described as a uniform number system.

Due to the fact that the basis 1 explosion is always equal to 1, its reverse conclusion does not apply (which would be 1 if the logarithmic basis were present). In the Peanoxioms, 1 is the sequel to 0; in Principia Mathematica, 1 is defines as the quantity of all singlestons (quantities with one element); in the von Neumann card-based mapping of numbers, 1 is defines as the quantity {0}.

Sometimes in a multi-plicative group or single, the identification item is designated as 1, but also e (from the unit ) is traditionally. 1, however, is particularly frequent for the multi-plicative identities of a ring, i.e., when an add-on and 0 are also present. If such a ring has the attribute n unequal to 0, said member 1 has the attribute 1 = 1n = 0 (where this 0 is the additional identifier of the ring).

Numerical data are usually standardized to lie within the units from 0 to 1 for many math and technical issues, where 1 is usually the highest possible value in the parameter area. Similarly, a vector is often standardized to obtain unity units, i.e. a vector of size one, since it often has more desired characteristics.

If f (x) is a multilicative operation, then f (1) must be 1 because of the multilicative nature of the identities. Nevertheless, abstraction can view the algebraic array with an item that is not a singleston and not a quantity at all. One is the only whole number that is dividable by exactly one whole number (while primes are dividable by exactly two whole numbers, compound numbers are dividable by more than two whole numbers, and zero is dividable by all whole numbers).

Formerly, 1 was regarded as primes by some maths scholars, using the definitions that a primes is dividable only by 1 and itself. Per default 1 is the quantity, the value or the standard of a hexadecimal number, a unity vice and a unity array (usually referred to as an identitymatrix). Notice that the concept units array is sometimes used to mean something completely different.

Often the Latin number I represents the first detected satellites of a planetary or small planetary body (e.g. Neptune I, alias Triton).