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10.4: Be aware of a Calculator widget bug
Authored by: sdewidt on May 24, '05 01:23:57PM

I think everyone agrees with you on the order of operations. Everyone know "Please excuse my dear aunt sally" or however you learned to remember it. But, I think there are different types of calculators that do things a little differently. I'm, unfortunately, in front of a windows machine right now and I checked out the calc app that is on this machine. Using it in standard mode and typing in the numbers gives me 9, but when I switch it to scientific mode I get 7. I think the calc widget is mimicking one of those cheap calculators that is doing the math step by step instead of considering the numbers as on continuous argument. On those calculators, any time you hit an operator sign, it uses the answer from the step before. In other words, when you type in 1 + 2 and then hit * 3, what the calculator is actually doing it 1 + 2 = 3 * 3 = 9. In my experience this is how most cheap calculators work. I've used a Ti-83 for the last 8-10 years, so I'm just used to typing in all of the numbers on one line and then hitting enter. Anyway, I hope this clears up any problems and misunderstandings.



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