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

_______________________________________________
MacOSX-talk mailing list
[email protected]
https://www.omnigroup.com/mailman/listinfo/macosx-talk

Reply via email to