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 ?
While the work assembled here is on the whole too refined to bear comparison with the eccentric visionary force of Sun Ra's Afrofuturist aesthetic, it does have a Ra-like affinity for fantasy, eclecticism, and humor--unusual qualities in work that addresses the fraught issues of race and power in America.
You look at certain levels of finance being thrown at mediocre players and it does not bear comparison."
I have never played the game, only watched, and my understanding of it does not bear comparison with Murphy's.
Later in the game a Bolton defender was sent off for handball - in accordance with the letter of the law - but the two offences scarcely bear comparison.
``They are still sensible and they still bear comparison with all the other teams we are competing against.
The new songs he has written bear comparison with his old stuff which means with some of the best ever.
The young man confronts Mr Tobias in church about his attitudes citing biblical texts which endorse community dancing (although the dances referred to in the bible scarcely bear comparison to the pelvic grinding and immodest gyrations we get here).
But Andersen, a pounds 1.5m signing from Aalborg 15 months ago, believes his goalscoring will bear comparison with ANYONE Rangers bring in - if only he gets the chance to prove it.
The quickest heat winner, she does face the second fastest in the shape of Leahs Moment, but their overall records do not bear comparison and Greenacre Lin has the advantage of the inside draw to boot.
Condemned by Schoenberg as 'frozen coffee-table gossip' and offered by the composer to the cause of Italian fascism, Alfredo Casella's 1926 Scarlattiana nevertheless has bright if vapid appeal and is given a spirited performance here -but still can't begin to bear comparison with the Stravinsky.
Spurs,a club (albeit a historically less successful one) that can in some ways bear comparison with Everton, have now gone down the route of a share offer, with 60,000 being issued at pounds 250 per share.
"To feel that kind of hurt is unbearable and the feeling after the 1994 semi-final doesn't bear comparison.