The phrase "an appropriate equation" is correct and usable in written English.
You can use it when referring to a mathematical equation that is suitable or fitting for a particular context or problem.
Example: "To solve this problem, we need to find an appropriate equation that models the relationship between the variables."
Alternatives: "a suitable equation" or "a fitting equation".
The inductance value was first approximated using an appropriate equation.
In order to avoid a time-consuming "pre-push" of the velocities, CAM advances the ionic current density a half-step with an appropriate equation of motion.
This paper reports on the residence time distribution according to six combinations of the open and closed boundary conditions, which are compared in order to determine an appropriate equation to fit experimental data from the stimulus-response method.
The derivation of an appropriate equation for evaluating the strength of intact rock is the common objective of many researchers in civil and mining engineering; therefore, mathematical expressions were derived in this paper to predict the strength of the rock using a genetic programming approach.
More insidiously, this question reinforced an undesirable schooling practice of many students—searching a source to find an appropriate equation and variable matching.
Therefore, a more practical way to reduce uncertainty would be to better identify how to assign these mid-range trees to an appropriate equation.
Like that of wt-PTDH, the pH rate profile for 17X-PTDH is pH-independent for log kcat) and displays a bell-shaped curve for log kcat/ Km) with extracted p Ka values of 6.53 ± 0.10 and 7.90 ± 0.08 from a fit to the appropriate equation (see Materials and Methods).
An averaged fluid particle velocity is derived using the continuity equation and the surface pressure is derived using an appropriate momentum equation.
The five slices acquired in every case were computed with a homemade software (My Map Analyzer) written in MatLab v. 7.01 (MathWorks, Nattick, MA, USA) in which colour-based maps were generated by fitting the signal intensities to the appropriate equation in a pixel-by-pixel base.
The regression analysis was carried out using STATISTICA software for evolving appropriate equation to develop a commensurate model.
It may be that the appropriate equation for such a system has features that produce irreversible effects (e.g., wave-function collapse) which differ in kind from those for a simple system.
