# parameter

## Definitions

• WordNet 3.6
• n parameter a constant in the equation of a curve that can be varied to yield a family of similar curves
• n parameter a quantity (such as the mean or variance) that characterizes a statistical population and that can be estimated by calculations from sample data
• n parameter (computer science) a reference or value that is passed to a function, procedure, subroutine, command, or program
• n parameter any factor that defines a system and determines (or limits) its performance
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Century Dictionary and Cyclopedia
• n parameter in mathematics,: The third proportional to any diameter of a conic section and its conjugate diameter: specifically this is the parameter of the former of these diameters. The parameter of the transverse axis is called the principal parameter, or the parameter of the curve.
• n parameter Any constant quantity entering into an equation
• n parameter A variable quantity of which the coordinates of a geometrical locus are direct functions. Thus, the coördinates of every universal algebraic curve can be expressed as rational functions of a single parameter.
• n parameter In crystallography, the ratio of the three axes which defines the position of any plane of a crystal; more specifically, the ratio belonging to the unit or fundamental plane for a given species: this axial ratio and the angular inclination of the axes constitute the crystalline elements for a species.
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Chambers's Twentieth Century Dictionary
• n Parameter par-am′ē-tėr (geom.) the constant quantity which enters into the equation of a curve: in conic sections, a third proportional to any diameter and its conjugate diameter.
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## Quotations

• J. G. Ballard
“What our children have to fear is not the cars on the highways of tomorrow but our own pleasure in calculating the most elegant parameters of their deaths.”

## Etymology

Chambers's Twentieth Century Dictionary
Gr. para, beside, metron, measure.

## Usage

### In literature:

The trouble with transcendent parameters is that there is nothing much an applicant or a candidate can do about them.
"After the Rain" by Sam Vaknin
Then he began inserting the new parameters.
"Project Cyclops" by Thomas Hoover
I know the parameters of what the procedure can do and what it can't.
"Syndrome" by Thomas Hoover
A considerable amount of variation in this parameter was found in all of the taxa (Table 5).
"Middle American Frogs of the Hyla microcephala Group" by William E. Duellman
It ought then to be possible to express them all in terms of three parameters.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6" by Various
The first distinction regards the number of these parameters.
"Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6" by Various
These parameters will be considered further in the discussion.
"Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado" by Charles L. Douglas
Vibration, acceleration, and weightlessness appear to be the three most important additional parameters.
"Significant Achievements in Space Bioscience 1958-1964" by National Aeronautics and Space Administration
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### In news:

In this paper, we de-vise a time-step optimal algorithm for this problem when all but a few parameters of the sensor/target system are unknown.
What are the Mayday decision parameters for firefighters.
The electronic keyboard can be divided into 4 separate zones with individual parameters.
As you probably know, parameters control many functions of a CNC.
It is important to know that many such parameters exist.
The first two parts of this series (part 1, part 2) on Finding Your Next Job were about coming to terms with the motivations and parameters behind looking for a next job in the first place.
TOTAL RADIATED POWER (TRP) is an increasingly important performance parameter for power amplifiers (PAs) in Global System for Mobile Communications (GSM) infrastructure equipment.
The NetCCU 800 Control Unit's task is to display the system parameters of the exciter, amplifier and cooling system.
No single technology or equipment performance parameter can tell you everything you need to know about th.
They acknowledge their respective genres ' parameters, then cleverly shatter them.
Indie pop seems to provide the ideal musical parameters for those husband-and-wife teams who decide to form two-person bands together.
The software also measures the most important parameters of such signals.
Milacron Heat Transfer equipment gives comprehensive control of all mold and machine hydraulic cooling parameters to optimize production rates, as well as the quality and appearance of parts.
Traditional mutation techniques change one or more parameters in the software specification, design or code and then try to find the test cases that can detect or kill those mutations .
The introduction sets the parameters for nature–bonding.
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### In science:

The reason for the special quantities for the last two parameters will become clear when we map this parameter choice onto FH χ-parameters that are needed in the SCF calculations.
Coil-Globule Transition for Regular, Random and Specially Designed Copolymers: Monte Carlo Simulation and Self-Consistent Field Theory
The closure of the stratum can be deﬁned by a continuous parametrization of the roots xi by some parameters z (one can choose as such parameters part of the variables bj ; in general, these variables are more than the parameters needed).
On a stratification defined by real roots of polynomials
Note that, one of the aj parameters can be absorbed into the normalization constant N , thus besides the c and αq,q′ parameters, there are a total of eleven (we ﬁx a1 = 1) free parameters to be determined by the variational principle and the mass of the baryon is just the expected value of the intrinsic hamiltonian.
Charmed and Bottom Baryons: a Variational Approach based on Heavy Quark Symmetry
The parameter Λ, being a function of the distribution parameters of the matrix elements, is sensitive to the changes in the system parameters, due to their inﬂuence on the system-interactions and their uncertainties.
Random Matrices with Correlated Elements: A Model for Disorder with Interactions
We use the image parameters , ΠI parameters , ΠS j i (i.e. the observables), to constrain both the source parameters and the lens potential.
A Hubble Space Telescope Lensing Survey of X-ray Luminous Galaxy Clusters: IV. Mass, Structure and Thermodynamics of Cluster Cores at z=0.2
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