Talk:Price fraction: Difference between revisions
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I have changed my mind. If the task is about money, and its says use floating point, then I would rather it be changed to not mention floating point at all as the phrase "floating point is the wrong type to use with money" is a very good phrase to follow. --[[User:Paddy3118|Paddy3118]] 19:34, 6 August 2010 (UTC)
== I don't even think this task is correct ==
Ok, this seems to be a task taken from "real life". What should its purpose be? Obviously, to determine the change on the dollar. Hence, the first line (>= 0) doesn't seem correct in the light of "< 1.01".
Let's say you get a price that is right on the dollar: e.g. $9.00. Which rule does apply? The ">= 0" one or the "< 1.01" one? If it is the former, you'll have to pay an extra 10 cents. If it's the latter one, you don't have to pay anything on top of that.
The only way I get this thing consistent is by assuming that the first rule should be "> 0" - and not ">= 0". This doesn't prevent me from making code that works as advertised, but if I were running a pharmacy, I'd be making a phone call to this "government agency" before processing any clients with "x.00" bills.
And yeah, you can express this table by just salting the math with a little binary magic ;-) --[[User:Hansoft|Hans Bezemer]] ([[User talk:Hansoft|talk]]) 12:27, 29 March 2022 (UTC)
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