The phrase "a preliminary approximation" is correct and usable in written English.
It can be used when discussing an initial estimate or rough calculation that may be refined later.
Example: "Before we finalize the budget, let's consider a preliminary approximation of the costs involved."
Alternatives: "an initial estimate" or "a rough calculation".
In this framework we undertake a preliminary empirical approximation to the area under study exploring how engineering students from two different socio-cultural contexts, Spain and USA, perceive CIE relationships and to what extent they believe they are developed by the education system.
The preliminary approximation is called predictor and is given by: (14).
As a result, Fox retained a substantial lead going into State of the Union programming at 9. Ratings for the 49-minute address weren't immediately available, but preliminary approximations show Fox's coverage on top, followed by NBC and CBS in a close race for second, and ABC in fourth.
Nevertheless, a correction algorithm based on a statistical calibration of the sensor is proposed, which should make it possible to use the recorded data for preliminary approximations.
Often the necessary operations include calculating averages, percentages, and other values that are preliminary approximations of forecasting, such as the weighted average cost of capital, which is used for discounting future cash flow.
We provide a general theoretical model as well as a preliminary, simple analytical approximation that is suitable for investigating the opposition behavior of planet, satellite, and asteroid surfaces.
In this work, a new operational strategy is investigated to alleviate the computational burden of MCMC samplers using results from a preliminary calibration performed with the First-Order Approximation (FOA) method.
However, as a consequence of this assumption, our second linear approximation cannot as such be applied to provide a preliminary assessment of potential herd effect in pandemic situations.
As a preliminary step, both E and H fields were measured in order to evaluate the goodness of the far field approximation in the measurement points.
