empirical curve

empirical curve

[em′pir·ə·kəl ′kərv]
(mathematics)
A smooth curve drawn through or close to points representing measured values of two variables on a graph.
References in periodicals archive ?
Given the complexity of modelling acidification, including calculation of pHBC at changing values of pH, and the amount of experimental data required to do it mechanistically, an alternative approach may be useful--to measure the soil's pH buffer curve using appropriate conditions and then to use the empirical curve in models.
The [beta] function is an empirical curve based only on two parameters (arch depth and molar width), it does not take the rest of the dental landmarks into consideration and it has no respect for asymmetry because it is a symmetrical function.
Phillips' empirical curve became famous almost instantaneously, despite it being a "rush job" (Phillips, cited by Blyth, 1975, p.
3) and, in the absence of first-principles calculation methods, has to be represented by empirical curves (1).
In order to make the hydraulic system heat calculations more manageable, some fluid power companies have conducted extensive tests and reduced results to empirical curves.

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