2. how to analyze complex engineering (Engineering Cost) is to analyze the activity level of nights description. The cost analysis is based on the fact finding coefficients. The relationship between the factors leading to the morning (Input) output (Output) and then bring a coefficient value of cost function (Cost Function). Finding the coefficients can be done 2 ways: physical (Physical Laws) rule, which uses the relationship. Of course, engineering and mathematical principles to calculate the value and how to use data from real tests, which take a long time to analyze.
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