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lefko
 2 years ago
ps1 problem 3, a few questions about the solution set:
1. The first loop is a while True loop. Is there ever a point which would return a False value, or does ending the loop depending on a break?
2. The test for finding a solution is: "if (high_payment  low_payment < 0.005)". Why not if ....<.01? Isn't .01 the accuracy required in the problem? Would <.01 not give an accurate enough response? Why?
3. Instead of the above two, I did while abs(balance)>.01 and nested another loop to simulate the passage of time. Is this better, worse, equivalent?
4. Why recompute the balance and months?
lefko
 2 years ago
ps1 problem 3, a few questions about the solution set: 1. The first loop is a while True loop. Is there ever a point which would return a False value, or does ending the loop depending on a break? 2. The test for finding a solution is: "if (high_payment  low_payment < 0.005)". Why not if ....<.01? Isn't .01 the accuracy required in the problem? Would <.01 not give an accurate enough response? Why? 3. Instead of the above two, I did while abs(balance)>.01 and nested another loop to simulate the passage of time. Is this better, worse, equivalent? 4. Why recompute the balance and months?

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awc228
 2 years ago
Best ResponseYou've already chosen the best response.11. The while True loop is an infinite loop. It will only end with a break. 2. Not sure. 3. Not sure. 4. I was wondering the same, so I tried it with and without recomputing the balance. The difference was that without recalculating postrounding the balance was +$0.01, and when recalculated after rounding the balance is $0.01. Thus, by rounding up to the highest cent we change the final balance by two cents.
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