## absolute frequency

Overview page. Subjects: Mathematics.

The number of occurrences of an event. For example, if a die is rolled 20 times and 4 sixes are observed the absolute frequency of sixes is 4 and the relative frequency is 4/20.

## absolute link

Overview page. Subjects: Computing.

A hyperlink specified by its full path. If the file containing the hyperlink destination is moved, the browser will be unable to locate the document.

## absolute path

Overview page. Subjects: Computing.

The full path to a file, comprising the drive identifier, directory tree (if any), and ending with the file name (e.g. C:\Documents\ABuser\MyDocuments\jobs\cv.doc).

## absolute value

Overview page. Subjects: Mathematics.

The value of a number disregarding its sign. Denoted by a pair of ‘|’ signs: thus the modulus of−2.5 is |−2.5 |=2.5.

## absolutely convergent series

Overview page. Subjects: Mathematics.

A series {*a*
_{
n
}} is said to be absolutely convergent if is convergent. For example, if *a*
_{
n
}=(−1)^{null...}

## absorption laws

Overview page. Subjects: Computing.

The two self-dual laws

*x* ∨ (*x* ∧ *y*) = *x*

*x* ∧ (*x* ∨ *y*) = *x*

(see duality) that are satisfied by all elements *x*,*y* in a...

## abstract algebra

Overview page. Subjects: Mathematics.

The area of mathematics concerned with algebraic structures, such as groups, rings and fields, involving sets of elements with particular operations satisfying certain axioms. The purpose...

## abstract computability theory

Overview page. Subjects: Computing.

The theory of functions that can be computed by algorithms on any algebra. Its aim is to explore the scope and limits of computation on any kind of data. It is a generalization to arbitrary...

## abstract data type

Overview page. Subjects: Computing.

A data type that is defined solely in terms of the operations that apply to objects of the type without commitment as to how the value of such an object is to be represented (see data...

## abstract machine

Overview page. Subjects: Computing.

A machine can be thought of as a collection of resources together with a definition of the ways in which these resources can interact. For a real machine these resources actually exist as...