I need the solution in matlab code

The stress concentration factor k, given in the following, is the ratio of the maximum stress (Tmax) to the average stress (Tave). k = Tmax Tave For a stepped shaft loaded in torsion, with dimensions as shown in the following figure, k is a function of rld and the maximum stress occurs at the rounded corner. AT 2233326 r/d 0.3 0.26 0.22 0.18 0.14 0.1 0.06 0.02 k 1.18 1.19 1.211.26 1.32 1.43 1.6 1.98 The average stress can be calculated by the following equation, where T is the applied shaft torque. 16T Tave d3 The stress concentration factors measured in tests for shafts with d/D=2 and r/d ratios are given in the table. (a) Use the following power function to model the relationship between k and r/d. Determine the values of b and m that best-fit the data. (b) Plot the data points and the curve-fitted model. Use the model to predict the stress concentration factor for r/d=0.04