"Precise calculation" refers to the careful and accurate process of determining or estimating something with a high level of accuracy, without making mistakes or approximations. Full definition
There are too many variables and possible end results for anyone to be expected to make precise calculations of intrinsic value. (arborinvestmentplanner.com)
All numbers are estimates, as inconsistencies and incomplete data from individual schools make precise calculations unlikely. (archive.sltrib.com)
In these cases, the pharmacy technician must perform precise calculations so he can tell patients how to make sure they take the proper dosage. (careertrend.com)