The ironic part is that I just tried the sequence myself: - 1 = eˣ
and got "Not a Number." 😳 (High Sierra, MBP 2015) > On Jan 8, 2020, at 1:53 PM, Macs R We <[email protected]> wrote: > > On the other hand, if it's clearly your hardware, you may have a much easier > time of wangling a free repair or replacement from Apple. > >> On Jan 8, 2020, at 1:45 PM, Dinse, Gregg (NIH/NIEHS) [C] >> <[email protected] <mailto:[email protected]>> wrote: >> >> >> Thanks for the suggestion. I should be able to do this, but probably not >> today. I never even thought about the hardware being the problem. That is >> upsetting. >> >> Gregg >> >> From: Macs R We <[email protected] <mailto:[email protected]>> >> Date: Wednesday, January 08, 2020 at 3:40 PM >> To: "Dinse, Gregg (NIH/NIEHS) [C]" <[email protected] >> <mailto:[email protected]>> >> Cc: "[email protected] <mailto:[email protected]>" >> <[email protected] <mailto:[email protected]>> >> Subject: Re: problem with Calculator app >> >> What's scary about this is that the response "not a number" is often a >> response directly from the hardware. >> >> If, like me, you are lucky enough to have on hand an external drive with >> relatively virgin copies of various Apple operating systems, you could boot >> one of them and see if you get the same result. It's possible that you will >> get this result no matter which operating system you boot on that hardware, >> whereas if you take the same drive and boot someone else's Mac with it, you >> may get proper results. That would pretty definitively show that the problem >> is your chip. >> >> On Jan 8, 2020, at 12:49 PM, Dinse, Gregg (NIH/NIEHS) [C] >> <[email protected] <mailto:[email protected]>> wrote: >> >> Hi, >> >> I am running the latest version of Mojave (10.14.6) on a fairly new iMac. >> Using the Scientific view in the Calculator app, I tried to evaluate exp(-1) >> and it said "Not a number". I tried several other negative values and none >> worked, even though they certainly should. When I tried taking 10 to the -1 >> power, I got the correct result (0.1), but for some reason it has a problem >> raising "e" (the base for natural logarithms) to a negative power. >> >> I tried quitting the app, but that did not help. I tried rebooting my mac, >> but that did not help. I contacted our support group and they said the only >> thing they could do is to reinstall the operating system, which seems like a >> drastic step. And exp(-1) worked just fine on the support person's mac. >> >> Is there anything else that someone can suggest, short of reinstalling the >> OS? The support person said that we could not simply replace the Calculator >> app because it was part of the OS. Any thoughts? >> >> Thanks, >> >> Gregg -- Macs R We -- Personal Macintosh Service and Support in the Wickenburg and far Northwest Valley Areas. http://macsrwe.com
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