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A/D converter

A/D converter   Quick reference

A Dictionary of Computer Science (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Mathematics and Computer Science
Length:
208 words
Illustration(s):
2

A device that can accept an analogue, i.e. continuous, signal whose amplitude lies within a given range, and produce an equivalent digital signal, i.e. an ...

Aalen model

Aalen model   Quick reference

A Dictionary of Statistics (3 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Mathematics and Computer Science
Length:
56 words
Illustration(s):
1

A *linear regression model describing the manner in which the *expected value of a response variable, Z(...

absolute value

absolute value   Quick reference

The Concise Oxford Dictionary of Mathematics (5 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Mathematics and Computer Science
Length:
41 words
Illustration(s):
1

For any real number the absolute value (also called the *modulus) of denoted by is itself if and ...

absorption laws

absorption laws   Quick reference

A Dictionary of Computer Science (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Mathematics and Computer Science
Length:
48 words
Illustration(s):
1

The two self-dual lawsx∨(x∧y)=xx∧(x∨y)...

abstract data type

abstract data type   Quick reference

A Dictionary of Computer Science (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Mathematics and Computer Science
Length:
257 words
Illustration(s):
3

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 (...

abstract reduction system

abstract reduction system   Quick reference

A Dictionary of Computer Science (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Mathematics and Computer Science
Length:
362 words
Illustration(s):
2

A general characterization of the process of deriving or transforming data by means of rules. It is an abstraction based primarily on examples of ...

acceptance–rejection algorithm

acceptance–rejection algorithm   Quick reference

A Dictionary of Statistics (3 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Mathematics and Computer Science
Length:
179 words
Illustration(s):
1

A method for generating values of a *continuous random variable for use in a *simulation. Suppose that the random variable ...

access vector

access vector   Quick reference

A Dictionary of Computer Science (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Mathematics and Computer Science
Length:
93 words
Illustration(s):
1

A vector that is used in the representation of a *ragged array. For example, the elements of a row-ragged array, ...

Ackermann function

Ackermann function   Quick reference

A Dictionary of Computer Science (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Mathematics and Computer Science
Length:
184 words
Illustration(s):
3

The *function A defined inductively on pairs of nonnegative integers in the following manner:A(0,n)...

adder

adder   Quick reference

A Dictionary of Computer Science (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Mathematics and Computer Science
Length:
203 words
Illustration(s):
1

In its simplest form, a digital electronic device that performs the operation of addition on two binary digits, the augend...

addition

addition ((of complex numbers))   Quick reference

The Concise Oxford Dictionary of Mathematics (5 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Mathematics and Computer Science
Length:
121 words
Illustration(s):
1

Let the complex numbers z 1 and z 2, where z 1=a+bi and z 2=...

addition

addition ((of vectors))   Quick reference

The Concise Oxford Dictionary of Mathematics (5 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Mathematics and Computer Science
Length:
189 words
Illustration(s):
1

Given vectors a and b, let and be *directed line segments that represent a and b, with the same initial point ...

addition law for probabilities

addition law for probabilities   Quick reference

A Dictionary of Statistics (3 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Mathematics and Computer Science
Length:
161 words
Illustration(s):
5

Law stating that if two events (see sample space) A and B are *mutually exclusive thenFor example, the ...

adjacency matrix

adjacency matrix   Quick reference

The Concise Oxford Dictionary of Mathematics (5 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Mathematics and Computer Science
Length:
95 words
Illustration(s):
1

For a *simple graph G, with n vertices v 1, v 2,…, v n , the adjacency matrix A...

adjacency matrix

adjacency matrix   Quick reference

A Dictionary of Computer Science (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Mathematics and Computer Science
Length:
215 words
Illustration(s):
6

A *matrix used as a means of representing an *adjacency structure, which in turn represents a *graph...

adjacency structure

adjacency structure   Quick reference

A Dictionary of Computer Science (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Mathematics and Computer Science
Length:
95 words
Illustration(s):
1

A means of representing a *graph. The adjacency structure corresponding to a *path G is the set{...

adjacent angles

adjacent angles   Quick reference

The Concise Oxford Dictionary of Mathematics (5 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Mathematics and Computer Science
Length:
24 words
Illustration(s):
1

A pair of angles on a straight line formed by a line or half-line meeting it. Adjacent angles will add to 180°....

adjoint

adjoint   Quick reference

The Concise Oxford Dictionary of Mathematics (5 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Mathematics and Computer Science
Length:
137 words
Illustration(s):
2

The adjoint of a square matrix A, denoted by adj A, is the transpose of the matrix of cofactors of ...

agglomerative clustering methods

agglomerative clustering methods   Quick reference

A Dictionary of Statistics (3 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Mathematics and Computer Science
Length:
193 words
Illustration(s):
1
Methods for grouping *multivariate data into clusters (see cluster analysis). Suppose there are n data items. The agglomerative clustering methods start by regarding these as ... More
Aitken’s Δ2 process

Aitken’s Δ2 process   Quick reference

A Dictionary of Computer Science (7 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Science and technology, Mathematics and Computer Science
Length:
65 words
Illustration(s):
1

A method to convert any convergent sequence {xn } into a more rapidly convergent sequence {xn...

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