3. Refer to the example program given on pages 336 338. Note the algorithm design, the hierarchy chart, the use of functions, and the comments in the program. Note the program style and comments. Design and write a program similar to the one given in the textbook to convert from miles to kilometers. Functions will be used, and comments will be included in the program. The functions will be well documented. The output will be well formatted.

Global Variables A global variable is any variable defined outside all the functions in a program. The scope of a global variable is the portion of the program from the variable definition to the end This means that a global variable can be accessed by all functions that are defined after the global variable is defined. Program 6-17 shows two functions, main and anotherFunc- t1on, that access the same global variable, num. Program 6-17 1 This program shows that a global variable 1s visible 2 II to all the functions that appear in a program after 3 Ithe var1able's declaration #include