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Yield and Stress The yield stress of many metals depends on the size of the grains. For such metals, the Hall-Petch equation relate the yield stress and the average grain diameter do millimeter and the yield stress of a metal in MPa d, ? 0.003,000 7.00 17.0022,00 38,006.007301 5 mm and Ogzp={281, 142, 131.94, 91.79, 72.65) MPa. Complete the given function by writing The following table contains the results from measurement of the average grain diameter in -a subfunction HallPetch that takes experimentally measured data to perform a least square curve fitt to determine o and k and determine the yield stress of material in MPa with a given grain diameter in millimeter. The subfunction HallPetch should use the internal functions polyfit and polyval. a subfunction PWLinearFit that takes experimentally measured data to perform piece-wise linear interpolation to determine the yield stress of material in MPa with a given grain diameter in millimeter. The subfunction PWLinearFit should use the internal function interp1 a subfunction SplineFit that takes experimentally measured data to performs spline interpolation to determine the yield stress of material in MPa with a given grain diameter in millimeter. The subfunction SplineFit should use the internal function spline. >[fitValue, linInterValue, splineIntervalue]- YieldStress (0.05) fitValue = 105.4941 84.9091 88.5457 linInterValue- splineIntervalue