The phrase "approximation to the actual" is correct and usable in written English.
It can be used when discussing how closely something resembles or estimates a real or true value or condition.
Example: "The model provides an approximation to the actual data, allowing us to make informed predictions."
Alternatives: "estimate of the real" or "representation of the true".
The clustering-based optimization uses an approximation to the actual cost of a routing solution without actual route construction.
But surprisingly, still for higher jet velocities the sensitivity constitutes a good approximation to the actual effect of the jet.
The results of significance and ANOVA tests have proved the developed three prediction models have an adequate approximation to the actual values.
Conditions have nevertheless been identified under which it is a very good approximation to the actual frequencies of the heated plate over wide temperature ranges.
It was found that the randomly overlapping spherical grain assumption offered great simplicity to the model, despite its approximation to the actual porous structure within a particle.
The minimum spouting and fluidization velocities predicted using the neural network models developed in this study show a better approximation to the actual experimental values than those obtained from correlations available in the open literature.
All you would need to convert them from homebrew approximations to the actual stuff is a factory, a skilled workforce, some raw materials and a sheaf of legal certifications.
The major focus of this paper is to present and compare a new MC simulation approach that obtains accurate approximations to the actual M2TR.
Thus, rate laws such as the popular Michaelis-Menten are approximations to the actual mechanism in specific conditions.
15 Finally, both the GP-reported treatment and the dispensation records are approximations to the actual intake and its timing, since it is possible that patients filled prescriptions but never took the drug.
The goal of the fixed-point model is to find the steady-state buffer occupancy denoted by x ⋆ which can be viewed as an approximation to the mean queue occupancy in the actual system.
