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Mathematics
A SPECIFIC OPTIMUM SECOND ORDER ROTATABLE DESIGN OF THIRTY-TWO POINTS WITH A PRACTICAL EXAMPLE
Koske J. K., Mutiso J. M.
Tum I. K.
This quadratic response surface methodology focuses on finding the levels of some (coded) predictor variables x = (x1u, x2u, x3u) that optimize the expected value of a response variable yu from natural levels. The experiment starts from some best guess or “control” combination of the predictor variables (usually coded to x = 0 for this case x1u = 30, x2u = 25 and x3u = 40) and experiment is performed varying them in a region around this center point.
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