set

1. Maths logic

a. a collection of numbers, objects, etc., that is treated as an entity: {3, the moon} is the set the two members of which are the number 3 and the moon

b. (in some formulations) a class that can itself be a member of other classes

2. any apparatus that receives or transmits television or radio signals

3. Tennis squash badminton one of the units of a match, in tennis one in which one player or pair of players must win at least six games

a. the number of couples required for a formation dance

b. a series of figures that make up a formation dance

a. a band's or performer's concert repertoire on a given occasion

b. a continuous performance

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

set

[set]

(astronomy)

Of a celestial body, to cross the visible western horizon while descending.

(chemistry)

The hardening or solidifying of a plastic or liquid substance.

(computer science)

A collection of record types.

(electronics)

The placement of a storage device in a prescribed state, for example, a binary storage cell in the high or 1 state.

(engineering)

A combination of units, assemblies, and parts connected or otherwise used together to perform an operational function, such as a radar set.

In plastics processing, the conversion of a liquid resin or adhesive into a solid state by curing or evaporation of solvent or suspending medium, or by gelling.

Saw teeth bent out of the plane of the saw body, resulting in a wide cut in the workpiece.

(geology)

A group of essentially conformable strata or cross-strata, separated from other sedimentary units by surfaces of erosion, nondeposition, or abrupt change in character.

(graphic arts)

The fixing or drying of a printing ink on a printed sheet, so that, though not completely dry, the sheet can be handled without smudging.

(materials)

The hardening or firmness displayed by some materials when left undisturbed.

Permanent deformation of a material, such as metal or plastic, when stressed beyond the elastic limit.

(mathematics)

A collection of objects which has the property that, given any thing, it can be determined whether or not the thing is in the collection.

(mechanics)

permanent set

(mining engineering)

frame set

(navigation)

The establishment of a course.

(oceanography)

The direction toward which an oceanic current flows.

set

1. The condition reached by a cement paste, mortar, or concrete when it has lost plasticity to an arbitrary degree; usually measured in terms of resistance to penetration or deformation; initial set refers to first stiffening, final set to attainment of significant rigidity.

2. The hydration and hardening of a gypsum plaster.

3. To convert a liquid resin or an adhesive to a hardened state by chemical or physical action such as condensation, polymerization, oxidation, vulcanization, gelation, hydration, or the evaporation of volatile constituents.

4.See saw set.

5. In plastering, to apply a finishing coat.

6. To drive a nail below the surface of the wood (with the use of a nail set).

7. The strain remaining after complete release of the load producing a deformation.

8. Collectively, the pieces of scenery that make up a theatrical scene.

9. To coat the back surface of a tile so that it will adhere to the surface to which it is applied.

SET

(security)

Secure Electronic Transaction.

SET

(electronics)

Single Electron Tunneling.

SET

(standard)

Standard d'Echange et de Transfert.

set

(4)

A collection of objects, known as the elements of the set, specified in such a way that we can tell in principle whether or not a given object belongs to it. E.g. the set of all prime numbers, the set of zeros of the cosine function.

For each set there is a predicate (or property) which is true for (possessed by) exactly those objects which are elements of the set. The predicate may be defined by the set or vice versa. Order and repetition of elements within the set are irrelevant so, for example, 1, 2, 3 = 3, 2, 1 = 1, 3, 1, 2, 2.

Some common set of numbers are given the following names:

N = the natural numbers 0, 1, 2, ...

Z = the integers ..., -2, -1, 0, 1, 2, ...

Q = the rational numbers p/q where p, q are in Z and q /= 0.

R = the real numbers

C = the complex numbers.

The empty set is the set with no elements. The intersection of two sets X and Y is the set containing all the elements x such that x is in X and x is in Y. The union of two sets is the set containing all the elements x such that x is in X or x is in Y.

See also set complement.

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

Set

(1) An internal DOS/Windows command that sets environment variables, which are stored values used by the operating system and many applications. To display the current values, type:

set

SETTING A VALUE
The set command creates an environment variable and places a value into it. Blank spaces matter. The following examples create NEWVAR with a value of "a."

set newvar=a   create newvar with "a"
  set newvar= a  create newvar with " a"

  set newvar=    delete newvar

(2) (SET) (Secure Electronic Transaction) A standard protocol from MasterCard and Visa for securing online credit card payments via the Internet. In this three-way transaction, the user, merchant and bank must use the SET protocols.

Credit card data and a digital certificate (for authentication) is stored in a plug-in to the user's Web browser. The order is received by a SET-enabled merchant server that passes encrypted payment information to the bank. Approval is electronically sent to the merchant.

Copyright © 1981-2025 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Set

a young plant raised for subsequent planting in a garden, park, or similar place. Sets of fruit crops are obtained in fruit nurseries; they are usually produced from grafted seedlings (stocks). Sets of berry crops (currant, gooseberry) are one-year-old nongrafted plants. The root suckers of raspberry plants are used as sets. In forestry, sets are young trees that have been raised from seeds or cuttings.

Set

(also Seth), in ancient Egyptian religion and mythology, a god initially venerated in the city of Ombos and whose cult then apparently spread throughout Upper Egypt and the northwest part of the Nile Delta. Set was considered a god of the desert and of foreign countries. According to Egyptian mythology, he was the brother and murderer of Osiris and was subsequently defeated by Horus, the son of Osiris. He was depicted in the form of an unidentifiable animal.