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10.4: Be aware of a Calculator widget bug
Authored by: renderhead on May 24, '05 06:16:15PM
What everyone is ignoring here is that operations entered into the calculator app (both the stand-alone app and Dashboard widget versions) are not entered "left-to-right". They are entered "first-to-last", separated chronologically, not spatially. When you write out a problem on a piece of paper like this:

1 + 3 * 2

you are able to view the entire problem at once and determine the correct order of operations. On the other hand, what if I walked up to you and said "Quick, what's one plus three?" and then after you'd answered "4", I continued with "...times two?" How would you know if I meant 1 + 3 * 2 or (1 + 3) * 2? In that situation, you'd most likely assume the latter, and so does a calculator that shows only one value at a time.

The reason graphing calculators get it right isn't because they are more expensive. It's because you enter the entire formula, which is shown on the screen as you enter it, before you hit "equals".

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10.4: Be aware of a Calculator widget bug
Authored by: tieneus on Aug 10, '05 04:01:24AM

All discussion aside. if this is a math rule OR even if it is a convention then in both instances 'every' calculator should follow this, wether convention or math rule. Because less educated people (or young children) might learn it wrong or actually think that 1+2x3=9. Imagine tax-institutions using this kind of calculus to get your tax cut (would you rather pay $7.- or $9.-) :-))



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