29. The heat index HI, calculated from the air temperature and relative humidity, is the apparent temperature felt by the body. An equation used by the National Weather Service for calculating the HI is given by:

where T is the temperature in °F, and R is the relative humidity in integer percentage. Write a MATLAB program in a script file that displays the following chart of heat index for given air temperature and relative humidity in the Command Window:
Temperature (F)
80 82 84 86 88 90 92 94 Relative Humidity (%)
50 81 83 85 88 91 95 99 103 55 81 84 86 89 93 97 101 106 60 82 84 88 91 95 100 105 110 65 82 85 89 93 98 103 108 114 70 83 86 90 95 100 106 112 119 75 84 88 92 97 103 109 116 124 30. The stress intensity factor K at a crack is given by where is the far-field stress, a is the crack length, and C is a parameter that depends on the geometry of the specimen and crack. For the case of the edge crack shown in the figure, C is given by:
Write a script file that will print out a table of values with the ratio a/b in the first column and the corresponding parameter C in the second column. Let a/b range between 0.05 and 0.80 with increments of 0.05