On Sat, 23 Aug 2014 14:21:03 -0400, Joel Goldstick <joel.goldst...@gmail.com> wrote:
>On Sat, Aug 23, 2014 at 1:47 PM, Seymore4Head ><Seymore4Head@hotmail.invalid> wrote: >> I am trying to do this example: >> http://openbookproject.net/pybiblio/practice/wilson/loan.php >> The instructions warn that floating point math can get messy so I >> cheated a little bit to get me going. >> >> I made my program work by using numbers that wouldn't get messy. >> Instead of using 6% interest I used 10 and instead of using 12 months, >> I used 10. >> >> I managed to get it working and formatted just like they wanted it, >> but now I want to try to use any numbers. It has been hard to figure >> out which method to use. >> >You need to learn about string formatting. Here is a good link: >http://mkaz.com/2012/10/10/python-string-format/ > Thanks. I will give that a try. >> Here is the working program. >> >> import sys >> count = 0 >> payment = 0 >> borrowed = 100 >> rate = 10 >> term = 10 >> interest=borrowed*rate*.01 #(*1) >> balance = borrowed + interest >> print ("Loan calculator") >> print ("") >> print ("Amount borrowed: ", borrowed) >> print ("Interest rate: ", rate) >> print ("Term: (months)", term) >> print ("") >> print ("Amount borrowed:" , borrowed) >> print ("Total interest paid:" , interest) >> print ("") >> print ("") >> print (" Amount Remaining") >> print ("Pymt# Paid Balance") >> print ("----- ------ ----------") >> while count <=term: >> >> >> print (repr(count).rjust(3), repr(payment).rjust(13), >> repr(balance).rjust(14)) >> >> >I don't understand why you are using repr(..) It is not necessary. > Would you please change the line to something you feel that is more appropriate? That was the first command I stumbled on that I could use to get the column spacing correctly. I have contacted my local library to get a couple of books on Python, but at the moment all I have is the web. Funny, I though using the web would be better than a book. I don't think so anymore. Using the web, it is hard to find square one tutorial text. >> payment = (borrowed + interest)/term >> balance = balance - payment >> count = count + 1 >> >> What should I use to make the formatting come out correctly when the >> program prints "payment" and "balance" using decimal format? >> >> If you change the "rate" from 10 to 6 and the "term" from 10 to 12, >> the screen gets very messy. >> >> Anyone care to suggest what method to use to fix the decimal format? >> -- >> https://mail.python.org/mailman/listinfo/python-list I would rather just use Usenet for the moment. Until the group gets tired of nursing the rookie. -- https://mail.python.org/mailman/listinfo/python-list
