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(computer science)
A computer operation in which two numbers are compared as to identity, relative magnitude, or sign.



comparing a gauge or quantity to be measured with a quantity that is reproducible in the measuring process.

Comparisons are made by instruments such as the equal-arm balance, the electric potentiometer, the photometer bench with a photometer, and the comparator for linear standards.



an act of thought by means of which the content of being and cognition is classified, ordered, and evaluated; in comparison, the world is understood to be “coherent” diversity. The act of comparison consists of the pairing of objects for the purpose of clarifying their relationship. Essential to this are the conditions, or bases, of comparison—the attributes that determine precisely what the possible relationships are between objects.

Comparison has meaning only in an aggregate of “homogeneous” objects that form a class. The comparability of objects in a class (tertium comparationis) is realized in terms of the attributes essential for a particular examination; objects comparable in terms of one basis may be incomparable in terms of another. For example, all people are comparable in terms of age, but not all are comparable with respect to “being older.”

The simplest and most important type of relationships revealed by means of comparison are the relationships of identity (equality) and difference. Comparison of this type leads in turn to the concept of universal comparability, that is, the notion that it is always possible to answer the question of whether objects are identical or different. Objects of visual experience are always comparable, although the condition of visibility, or observability, is a significant restriction. In theory, the visual comparison of objects is often impossible, and to compare objects it is necessary to resort to inferences and, eventually, to certain abstractions from which the inferences have been deduced. The supposition of universal comparability is therefore sometimes called the abstraction of comparability. As a rule, the abstraction of comparability is a nontrivial hypothesis and is valid within the framework and on the basis of the main principles of theory.

M. M. NOVOSELOV [24–1047–1; updated]

References in periodicals archive ?
Having not had the benefit of the 136bhp for comparision all I can say is that the 120bhp engine felt more than capable of hauling the Mazda along.
Another important aspect for bilingual education was given by Cummins (1997) such as the global market economy: The reality is that any student who graduates from grade 12 with access to only one language is seriously disadvantaged in the global economic market in comparision to those who have multilingual skills (in Ovando and Collier, 1998, p.X).
The comparision between the Meinongian and medieval approaches helps to bring out the merits and potential pitfalls of each.
Limbaugh's illegal drug buys, over 90 pills a day at one point, make Richard Paey's pale by comparision. And while Mr.
"Comparision of Time Spent Writing Orders on Paper with Computerized Physician Order Entry." Medinfo.
A good comparision between RC and reject-grade (poor!) milled lumber was this: Reject grade 2x4 by stud length: $2-$3.
Using dark colored mat board and colored pencils, they drew their insects as they really are in nature, providing viewers with a comparision between the real and the imagined insects.
Warning: Divide the price by length of service or subscription, but avoid a price-per-book or price-per-page comparision. Reason: Specialized information products always have a higher price per page than the trade books or periodicals with which the buyer will invariably make a comparison.
turdus and Ixodes [ILLEGIBLE TEXT] comparision of the sequences with those of Borrelia burgdorferi sensu [ILLEGIBLE TEXT] Environ Microbiol 1996;62:2338-44.
The 90-year-old had "learned the hard way" while paying private pay rates for her husband; her obviously relatively high premiums for the insurance seemed a bargain by comparision.
Also, a more detailed comparision of the slavocracy and the wage-labor system would be needed.