Executing a program:
Running the program would be completed by typing the name of the script; this would call the other functions:
Whenever prompted, please enter the radius in inches.
Enter the radius: 5.3
For a circle with radius of 5.30 inches,
the area is 88.25 inches squared.
Note that how the function calls and the function headers match up. For illustration:
function call: radius = readradius;
function header: function radius = readradius