project c++

Learning Goal: I’m working on a c++ project and need an explanation and answer to help me learn.

Through this programming assignment, the students will learn to do the following:

Learn to work with command line options and arguments

Gain more experience with Makefiles

Gain more experience with Unix

Learn to use some of the available math funtions available with C

Usage: mortgagepmt [-s] -r rate [-d downpayment] price

In this assignment, you are asked to do a mortgage payment calculation. All information needed for this will be passed to the program on the command line. There will be no user input during the execution of the program.

You will need a few pieces of information. The price of the home and the amount of the down payment. You will also need to know the interest rate and the term of the mortgage. To figure your mortgage payment, start by converting your annual interest rate to a monthly interest rate by dividing by 12. Next, add 1 to the monthly rate. Third, multiply the number of years in the term of the mortgage by 12 to calculate the number of monthly payments you’ll make. Fourth, raise the result of 1 plus the monthly rate to the negative power of the number of monthly payments you’ll make. Fifth, subtract that result from 1. Sixth, divide the monthly rate by the result. Last, multiple the result by the amount you want to borrow.

In addition, you will add on PMI of 1% of the amount borrowed/12 if the down payment is less than 20% of the price of the home. This will stay the same for the life of the loan.


-s is optional and means that the mortgage will be a 15 year mortgage instead of the standard 30 year mortgage you would use as a default.

-r is required and the argument is the yearly interest rate for the loan. The interest rat3e should be between 3% and 10%.

-d is optional and the argument is the downpayment that will be made on the loan. It cannot be larger than the price of the home.

You will print out the resulting payment amount as follows. Use rounding to keep money to two decimals and percentages to three decimals.

“The payment on a loan of $###,###.## with an interest rate of #.###% for a term of ## years will be $##,###.##”

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