The phrase "an initial approximation to" is correct and usable in written English.
It can be used when discussing a preliminary estimate or a rough calculation that serves as a starting point for further analysis or refinement.
Example: "The researchers provided an initial approximation to the solution, which will be refined through further testing."
Alternatives: "a preliminary estimate of" or "a rough calculation of".
Fiber microdissection techniques in post- mortem brains allow for an initial approximation to the complex architecture of the fiber tract systems closely related to the human claustrum.
The proposed model can be considered as an initial approximation to the solution of the problem of flexible waveguides design, which makes it possible to determine and validate effective methods of its addressing.
Inspecting the function associated with SSF allows, in an initial approximation, to postulate on the functional uniqueness of a species.
As an initial approximation, we chose to fit a single-exponential decay to each pixel to estimate the mean fluorescence lifetime, as shown in Figure 7 c.
The non-linear eigenvalue problem can now be solved iteratively, by using an initial approximation for λ to build S λ, then solve the eigenvalue problem by suitable means and use the resulting eigenvalue as a new approximation for λ.
Let us begin with an initial approximation where and are constants to be determined.
Such dosage constraints can be overcome by the duplication of the entire genome, which, to an initial approximation, leaves relative gene dosage unaltered.
Kleinman [ 10] first offered an empirical weighting procedure and suggested to set w i = n i or w i = 1 to obtain an initial approximation of estimates of μ and γ using equation (4).
We are aware that our results are an initial approximation and further experimentation will be necessary to extend these studies to the cellular level.
It should be pointed out that in order to understand the object of the study, an initial approximation was sought with the guidelines that guide the Brazilian health system due to its peculiarities.
Once the photos are uploaded to the server, the program spits back an initial approximation of the model showing the positions that the photos were taken from.
