Before everyone gets too wrapped up in code, take a look at the instructions for exercise 4:
"Practice using the Python interpreter as a calculator" So for the books, maybe - books = 24.95 * 0.6 * 60 = 898.1999 ship = 3.0 + 0.75 * 59 = 47.25 total = round(books, 2) + ship = 945.45 And the runner - minutes = 8.25 + 3*7.2 + 8.25 leave at 7:52 so 52 + minutes - 60 is 8:30 and 6 seconds Richard-----Original Message----- From: Ivan Pivac
Sent: Sunday, May 18, 2014 3:03 AM To: pythonvis@xxxxxxxxxxxxx Subject: [pythonvis] exercise discussion Hi everyone, Since Thursday's learning room meeting, I have been working my way through the two exercises at the end of chapter 2 in the book, Think Like a Computer Scientist. I wonder if if would be a a good idea to go through these two exercises, looking at the code and how best to produce the final output? In the first task looking at the cost of retailing books, I resolved the problem, but, I wonder if my code could be more efficiently written. One question in this exercise is how to write the code where the retail cost of the book is $24.95 but the dealer receives a 40% discount. My solution was: 24.95/10*6 however, the code didn't seem correct to me although the answer was after doing the maths on a calculator. . In exercise two regarding what time a walker returned home, I have the total time taken to walk the distance but don't know how to add those minutes onto the time of 6.52 am. Would it be worth while, I wonder, if the experts on the list could actually code the exercises as we work through them so that we can discuss the tasks on the learning room forum? there may be several ways of producing the answer so examining those methods would also be an invaluable learning experience. Meanwhile, I'll continue working on the home arrival time. Regards Ivan -- Ivan Pivac 4271 Great North Rd P O Box 69-203 Glendene Auckland 0645 New Zealand Tel: (64) 9 836-8876 Fax: (64) 9 836-4668 Email: ivan@xxxxxxxxxxxxx ---This email is free from viruses and malware because avast! Antivirus protection is active.
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