[Libreoffice-bugs] [Bug 141292] Calc should display hint "internal calculation is done without rounding".

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=141292

--- Comment #24 from steffan.steffner at gmx.net ---
I’d like to get back to my example, as shown in the attachment (screenshot and
.odt file)„test normal:
the calculation at hand is an invoice, and all the figures show amounts in Euro
(€): 469,08 + 1946,96 + 75,05 + 369,92 = 2861,02 
If you take out your calculator, you will get the result 2861,01 

I was frantically looking for more than 1 hour to find out which was the
mistake I made in setting up the spreadsheet, and at the end I came to the
conclusion that LibreOffice was a piece of crap and you couldn’t trust it with
even the simplest calculations. I resorted to solve my problem by manually
filling in the desired result 2861,01. Only to find out later I found out what
it was all about.

I can tell you that my thoughts were I will abandon LibreOffice because of
this. And certainly, in response to Comment #22 and #23, what I am arguing for
is not to move the function to some other place, I would just think it might be
good to let the user know what happens behind the scenes **if  the calculation
at hand is affected**. And I would agree with comment #23 that in order to
achieve this (=only show if it makes a difference) there is a performance
penalty in that you have to do the calculation twice, one time with the normal
precision (which is about 15 digits) and a second time with the decimal
accuracy as shown. My best bet would be that this could take like 50
milliseconds on an average computer. 

And, sure enough, I myself don’t really need this tooltip, because I will know
immediately. And to completely avoid this problem for my invoices, all I have
to do is in my template for invoices to set the option  “precision as shown”.

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