Comparison

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comparison

[kəm′par·ə·sən]
(computer science)
A computer operation in which two numbers are compared as to identity, relative magnitude, or sign.

Comparison

 

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.


Comparison

 

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 ?
Our record stands comparison with any other force in Britain,' replied Mr Brunstrom.
Not for the first time in recent weeks, theLinnets overcame an interval deficit to gain reward on their travels where their record stands comparison with any team in the league.
Our waterfront stands comparison with any other and helped the city gain a marvellous accolade.
Shaun Pollock's team beat Sri Lanka 5-1 in the last limited-overs series between the countries and England's form right now stands comparison with the Proteas.
OF ALL the incredible journeys completed at these games, Darren Campbell's surely stands comparison with most.
People should be judged on their track record and I think mine stands comparison with most.
Since the start of England's disappointing campaign in the last tournament in South Africa,Flintoff's record stands comparison with all the leading all rounders in world cricket.
Smith, who is returning to one of his former clubs tonight, hopes to name an unchanged line-up after declaring himself satisfied with the performance against Scunthorpe and says Wrexham's away record - just two defeats on their travels - stands comparison with the best.
COURSE experience counts for plenty at most tournaments, none more so than at Memorial, and Greg Norman's Muirfield Village record stands comparison with anyone.
Paul Ince will return to English football next season with the conviction of a man who stands comparison with anyone in the game.