Variations

If you succeed in getting the basic WOTCOST.C program working, and you have tested it thoroughly, then you can go on to try the following:

• WOTCOST1.C: Behaves exactly like the given program, except that it first displays an additional message like "Welcome to the WOTCOST program".

• WOTCOST2.C: Behaves like the given program, except that it expects the interest rate to be entered already as an absolute value such as 0.15, rather than as a percentage.

• WOTCOST3.C: Behaves exactly like the given program - but the variable names are changed to more meaningful ones (like "principal", "years" etc.).

• WOTCOST4.C: Behaves exactly like the given program except that it prompts separately for each of the input values to be entered.

• WOTTIME.C: Similar in concept to the given program; but it is given the principle, interest rate, and monthly repayment; it has to calculate how long the loan will take to pay off.

• WOTCOST5.C: Behaves exactly like the given program, except that it rejects any attempt to enter a negative value for any of the inputs.