constant

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constant

1. a specific quantity that is always invariable
2. 
a. Maths a symbol representing an unspecified number that remains invariable throughout a particular series of operations
b. Physics a theoretical or experimental quantity or property that is considered invariable throughout a particular series of calculations or experiments
3. See logical constant
http://physics.nist.gov/cuu/Constants/index.html
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Constant

 

in prosody, a constant element in the rhythmic organization of verse; mainly, a constant stress on a certain syllable. Thus, in the verse of M. Iu. Lermontov’s narrative poem Mtsyri, the constant is the constant word boundary after each eighth syllable (boundary of the verse) and the constant stress on the last, eighth syllable of each segment.

Vse luchshe pered kem-nibúd’
Slovami oblegchit’ mne grúd;
No liudiam ia ne delal zlá,
I potomu moi delá
Ne mnogo pol’zy vain uznát’;
A dushu mozhno l’ rasskazát’? … 

Constant

 

a quality that has the same value throughout a given discussion. The constancy of the quality x can be expressed symbolically as x = const. Constants are often represented by the letters C and K.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

constant

[′kän·stənt]
(science and technology)
A value that does not change during a particular process.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

constant

In programming, a fixed value in a program. Minimum and maximum amounts, dates, prices, headlines and error messages are examples.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
This uncertainty swirling around the constants could cause headaches for metrologists.
Before an entire system of units can be redefined, however, it is important to be certain that the fundamental constants upon which the definitions depend are as accurate and precise as possible.
Experiment is the most accurate and convenient way to evaluate the time constant. The prevalent experimental method for meters is based on the measurement of the meter response to step (sharp) input change.
To produce the measured FSC value, Horie's pure theory model only needs the correct spin coupling ([square root of 2]), the correct l/[l.sub.0] value ([??]) and the [zeta] adjustment that come from the approach that produced the 4[pi] definition of Nature's constants.
String theory has frequently been used to support a counterargument against the design claim--that multiple universes may exist, each with its own set of constants, and of these at least one happens to be suitable for life.
Neutron [beta]-decay provides the most precise measurements of the relative axial-vector coupling constant [lambda].
Against those revolutionary doctrinaires who asserted that republics are the only legitimate form of government, Constant recurs to those enduring "principles of politics [that are] independent of all constitutions" and are at the foundation of moderate politics in all its forms.
Uniaxial, equi-biaxial and planar tests mimic rubber deviatoric behavior (constants [C.sub.ij] in the polynomial strain energy density form, and [[alpha].sub.i] and [[mu].sub.i] in the stretch ratios-based one).
By setting up an initial condition where a theoretical material with an air dielectric is assumed, the width of a 50 [Omega] microstrip transmission line can be calculated using a dielectric constant of one, as shown in Figure 1.
Loan proceeds can increase while interest rates are low if coverage remains constant with higher interest rates.
Scientists measure Planck's constant using precisely known standards, including those for mass and electrical current.
We plan to use this oil in a new type of neutron lifetime measurement, where a bellows system ("accordion") enables to vary the trap size in a wide range while the total surface area and distribution of surface area over height remain constant. These unique characteristics, in combination with application of the scaling technique developed by W.