
10.4: Be aware of a Calculator widget bug
On all three of my calculators, it properly obeys the order of operations, regardless of what the display shows, which is correct.
10.4: Be aware of a Calculator widget bug
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 Ti83 for the last 810 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.
10.4: Be aware of a Calculator widget bug
Look, the calculators you own are obviously designed more recently  I suspect they are scientific or student calculators that understand precedence.
10.4: Be aware of a Calculator widget bug
You're so right old fellow! These young whippersnappers just don't understand that it's up to them to get it right! Actually the rules they cite, taught to them in the third grade, were intended to teach them how to simplify an arithemetic equation in a multistep fassion and do not apply to a binary operation calculator. Evaluate everything within parentheses first and rewrite the simplified equation, apply exponents and rewrite the equation, etc.
10.4: Be aware of a Calculator widget bug
That's what it is!
10.4: Be aware of a Calculator widget bug
"This will be my third post saying it"
10.4: Be aware of a Calculator widget bug
It's not strictly a bug, but it is a very poor decision by Apple. 
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