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PowerPoint to accompany Applied Numerical Methods With MATLAB® for Engineers and Scientists First Edition Steven C. Chapra Chapter 13 Copyright © 2005. The McGraw-Hill Companies, Inc. Permission required for reproduction or display. (a) Data that is ill-suited for linear least-squares regression. (b) Indication that a parabola is preferable. Figure 13.1 13-1 Fit of a second-order polynomial. Figure 13.2 13-2 Graphical depiction of multiple linear regression where y is a linear function of x1 and x2. Figure 13.3 13-3 Comparison of transformed and untransformed model fits for force versus velocity data from Table 12.1. Figure 13.4 13-4