# parametric equation

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## parametric equation

[¦par·ə¦me·trik i′kwā·zhən]
(mathematics)
An equation where coordinates of points appear dependent on parameters such as the parametric equation of a curve or a surface.
References in periodicals archive ?
The correlation coefficient (Pearson r for the parametric variables) measures the degree of this connection.
Take [??] as the small parametric variable and use the method of series expansion [14].
This approach employs the exploration of parametric variables to understand the behavior of such a system and then uses this understanding to strategize the system's response to environmental conditions and external forces.
Nominal variables were expressed as frequencies, parametric variables as means [+ or -] standard deviation (SD) and nonparametric variables as medians with range.
Descriptive Statistics Minimum Median Mean Maximum Standard deviation Deposit rate 0.004 0.038 0.038 0.089 0.008 Loan-to-member ratio 0.009 0.447 0.471 1.859 0.177 Herfindahl index 0.053 0.208 0.208 1 0.095 Parametric Variables from the Semi-Parametric Regression Type of membership (TOM) codes Coefficient t-Statistic Military 2.385 x [10.sup.-2] 1.795 [*] Government 2.087 x [10.sup.-2] 2.239 [**] Manufacturing 4.560 x [10.sup.-2] 5.053 [***] Services 4.178 x [10.sup.-2] 4.480 [***] Number of observations 5,134 (*.)/(**.)/(***.)Significant at 10/5/1 percent levels (two-tailed tests).
Another kind of subroutine called a parametric subroutine is written so that values can be applied to parametric variables to fit the situation required for a given part.
The internal independent factors (indicators) were described by a number of quantitative and parametric variables (predictors).
An independent t-test was used for continuous parametric variables, the Mann-Whitney U test for nonparametric variables, and chi-square test for categorical variables.
Statistical Analysis: Continuous parametric variables were reported as means +- standard deviation and non-parametric continuous variables were reported as median with 25-75 inter quartile range.
Statistical Analysis: Continuous parametric variables were reported as means +- standard deviation and categorical variables were expressed as percentages.
Statistical Analysis: Continuous parametric variables were reported as means +- standard deviation; and categorical variables were expressed as percentages.
While independent sample, t-test was used to compare parametric variables pertaining to two different groups, Mann-Whitney-U test was used to compare the non-parametric variables.

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