compact

(redirected from compactness)
Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.

compact

1
1. Logic (of a relation) having the property that for any pair of elements such that a is related to b, there is some element c such that a is related to c and c to b, as less than on the rational numbers.
2. US and Canadian (of a car) small and economical
3. US and Canadian a comparatively small and economical car
4. Metallurgy a mass of metal prepared for sintering by cold-pressing a metal powder

compact

2
Law an official contract or agreement

compact

[′käm‚pakt]
(metallurgy)
A briquette made by the compression of metal powder, with or without the addition of nonmetallic constituents.

compact

1. (Or "finite", "isolated") In domain theory, an element d of a cpo D is compact if and only if, for any chain S, a subset of D,

d <= lub S => there exists s in S such that d <= s.

I.e. you always reach d (or better) after a finite number of steps up the chain.

("<=" is written in LaTeX as \sqsubseteq).
References in periodicals archive ?
The degree of compactness was intended only for soil layers annually disturbed by tillage, and it has only been tested for this purpose (Hakansson 1990) by using either the Proctor test or the uniaxial compression test.
18) The McClatchey plaintiffs, who named Carnahan as the sole defendant, also took issue with the compactness of the Map's districts.
Today's skid steers and compact excavators are cheaper to transport, offer compactness, versatility and toughness to handle today's severe applications," says Zupancic of John Deere.
WOODLAND HILLS - Residents urged the Los Angeles City Council Redistricting Commission on Monday to draw council districts with common economies and geographic compactness.
However, other specifically geographic factors such as the compactness and contiguity of electoral districts, have also been included among the various desiderata of good electoral districts (Morrill 1981; Lijphart 1990; Butler and Cain 1992).
Contiguity, compactness, and respect for both communities of interest and formal political subdivisions are districting criteria that have been elevated in importance recently by the United States Supreme Court.
It could have taken the opportunity presented by the North Carolina case and others to define neutral principles to guide districting plans, such as the strict compactness standard proposed by Daniel Polsby and Robert Popper for the Heartland Institute.
Concentration compactness is an important method in mathematical analysis.
Since then, desiccant dryers have further advanced in compactness, drying controls, and energy savings.
Its high specific gravity and compactness make it resistant to wear and tear.
It features compactness, proven Zeiss optics, unparalleled mobility, and an optional integrated video system.