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Mac Forum / General / General / January 2007Calculator oddity
I own an iMac G5 1.8Ghz running 10.3.9. I get a very strange result when I add the following numbers in the calculator: 2353.82 + 3231.96 = 5585.780000000001 If any of the numerals in the problem change, the trailing "0000000001" in the answer does not appear. It does not matter which number is entered first. I've rebooted, repaired permissions and run Mac Janitor (I do so on a regular basis anyway). I use the calculator on a fairly regular basis and so far only this combination of numbers produces the anomaly. If I enter the same thing in the Classic calculator, all is normal. Does anyone have any idea what's going on? Thanks for any advice. Ern > Does anyone have any idea what's going on? Yes, this is not unique to the Mac, nor to any specific programs. It's inherent in binary to decimal conversions.  SignatureSupport the troops: Bring them home ASAP. > I own an iMac G5 1.8Ghz running 10.3.9. I get a very strange result when I > add the following numbers in the calculator: 2353.82 + 3231.96 = > 5585.780000000001 I'm running 10.4.8 on a MacBook Pro and I don't get the trailing zeros and a one, and this is with precision set to 16. SignatureJames Leo Ryan ..... Austin, Texas ..... taliesinsoft@mac.com > I own an iMac G5 1.8Ghz running 10.3.9. I get a very strange result when > I add the following numbers in the calculator: [quoted text clipped - 12 lines] > > Ern In Tiger, I don't get the trailing zeros when I do that sum in Calculator (with precision set to 11), but back in Panther, I got an obviously incorrect sum in Apple's Calculator, and so I have used KoalaCalc (http://www.macropodsoftware.com/koalacalc/index.html) ever since. In article <magdalenabung-7907D6.22423930012007@comcast.dca.giganews.com>, > In Tiger, I don't get the trailing zeros when I do that sum in > Calculator (with precision set to 11), but back in Panther, I got an > obviously incorrect sum in Apple's Calculator, and so I have used > KoalaCalc (http://www.macropodsoftware.com/koalacalc/index.html) ever > since. KoalaCalc is an excellent product and the price is right, too. --Fred > KoalaCalc is an excellent product and the price is right, too. Koalacalc has handy easily accessed converters built in - nice ... almost as good as the old MacOS 7 shareware calculator called, err various things but at a later stage it was Sliderule (though nothing like a sliderule for those old enough to have used one!) SignatureAdrian >> I own an iMac G5 1.8Ghz running 10.3.9. I get a very strange result when >> I add the following numbers in the calculator: [quoted text clipped - 12 lines] >> >> Ern > In Tiger, I don't get the trailing zeros when I do that sum in > Calculator (with precision set to 11), but back in Panther, I got an > obviously incorrect sum in Apple's Calculator, and so I have used > KoalaCalc (http://www.macropodsoftware.com/koalacalc/index.html) ever > since. What do you mean by an "obviously incorrect sum"? The one reported by "Mac User" is correct to 15 significant digits, after all. SignatureDave Seaman U.S. Court of Appeals to review three issues concerning case of Mumia Abu-Jamal. <http://www.mumia2000.org/> > >> I own an iMac G5 1.8Ghz running 10.3.9. I get a very strange result when > >> I add the following numbers in the calculator: [quoted text clipped - 22 lines] > What do you mean by an "obviously incorrect sum"? The one reported by > "Mac User" is correct to 15 significant digits, after all. I'm talking about a calculation I did years ago (a simple addition calculation--it was too long ago to remember the exact numbers), not the one the OP was talking about. I actually got more than one incorrect calculation. To me that's two too many, which is why I switched to KoalaCalc. The Tiger Calculator may very well be perfectly fine, but I'm leery after my Panther Calculator experience. |
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