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单词 proportionality
释义

proportionality


pro·por·tion·al

P0602200 (prə-pôr′shə-nəl)adj.1. Forming a relationship with other parts or quantities; being in proportion.2. Properly related in size, degree, or other measurable characteristics; corresponding: Punishment ought to be proportional to the crime.3. Mathematics Having the same or a constant ratio.n. One of the quantities in a mathematical proportion.
pro·por′tion·al′i·ty (-shə-năl′ĭ-tē) n.pro·por′tion·al·ly adv.
Thesaurus
Noun1.proportionality - a ratio of two quantities that is constantcommensurateness, proportionateness, correspondence - the relation of corresponding in degree or size or amountratio - the relative magnitudes of two quantities (usually expressed as a quotient)
2.proportionality - harmonious arrangement or relation of parts or elements within a whole (as in a design); "in all perfectly beautiful objects there is found the opposition of one part to another and a reciprocal balance"- John Ruskinbalance, proportionplacement, arrangement - the spatial property of the way in which something is placed; "the arrangement of the furniture"; "the placement of the chairs"
Translations
proporzionalità

Proportionality


Proportionality

 

the simplest type of functional relation. Quantities may be directly or inversely proportional.

Two variable quantities are said to be directly proportional, or proportional, if their ratio is constant—that is, if the multiplication or division of one of the quantities by some number means that the other is multiplied or divided by the same number. If the quantities x and y are directly proportional, this is described analytically by the equation y = kx, where k is called the proportionality factor, or proportionality constant. The relation between x and y is represented graphically by the line or half line passing through the origin whose slope is equal to the proportionality factor.

Two variable quantities x and y are said to be inversely proportional if one of them is proportional to the inverse of the other—that is,

or xy = k. An equilateral hyperbola (or one of its branches) is the graph of such a functional relation.

Proportional relations are encountered very often. For example, the distance S traveled by a body in uniform motion is proportional to the time t: S = kt, where k is the speed of the body. The weight P of a homogeneous body is proportional to the body’s volume v: P = kv, where k is the body’s specific weight. The time required for a given quantity of soil to be excavated is inversely proportional to the amount excavated per man-hour.

proportionality


proportionality

1 in English court practice, the relatively new principle that costs of a case should be related to its importance and value. It has had a dramatic effects on cost recovery and the conduct of litigation. 2 for European law see SUBSIDIARITY.

proportionality


  • noun

Synonyms for proportionality

noun a ratio of two quantities that is constant

Related Words

  • commensurateness
  • proportionateness
  • correspondence
  • ratio

noun harmonious arrangement or relation of parts or elements within a whole (as in a design)

Synonyms

  • balance
  • proportion

Related Words

  • placement
  • arrangement
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更新时间:2025/2/24 3:05:22