1) Torque T for a small maritime diesel engine was tested as a function of engine speed x as shown below. Use MATLAB "polyfit" to determine the best-fit quadratic model for torque as a function of engine speed. Use "polyval" to provide a plot of the raw data and your quadratic model. Provide hardcopy of your code.

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x² + x = engine speed | T = engine torque [1000 rpm] [N.m] 460 T= 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 600 680 760 815 860 870 855 800 730 635 x + x² + x = engine speed | T = engine torque [1000 rpm] [N.m] 460 T= 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 600 680 760 815 860 870 855 800 730 635 x +

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