[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #25 from QA Administrators  ---
Dear Alex Kempshall,

To make sure we're focusing on the bugs that affect our users today,
LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed
bugs which have not been touched for over a year.

There have been thousands of bug fixes and commits since anyone checked on this
bug report. During that time, it's possible that the bug has been fixed, or the
details of the problem have changed. We'd really appreciate your help in
getting confirmation that the bug is still present.

If you have time, please do the following:

Test to see if the bug is still present with the latest version of LibreOffice
from https://www.libreoffice.org/download/

If the bug is present, please leave a comment that includes the information
from Help - About LibreOffice.

If the bug is NOT present, please set the bug's Status field to
RESOLVED-WORKSFORME and leave a comment that includes the information from Help
- About LibreOffice.

Please DO NOT

Update the version field
Reply via email (please reply directly on the bug tracker)
Set the bug's Status field to RESOLVED - FIXED (this status has a particular
meaning that is not 
appropriate in this case)


If you want to do more to help you can test to see if your issue is a
REGRESSION. To do so:
1. Download and install oldest version of LibreOffice (usually 3.3 unless your
bug pertains to a feature added after 3.3) from
https://downloadarchive.documentfoundation.org/libreoffice/old/

2. Test your bug
3. Leave a comment with your results.
4a. If the bug was present with 3.3 - set version to 'inherited from OOo';
4b. If the bug was not present in 3.3 - add 'regression' to keyword


Feel free to come ask questions or to say hello in our QA chat:
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Warm Regards,
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MassPing-UntouchedBug

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #24 from bugzil...@cb-computerservice.at ---
Just to let you know:
I can easily reproduce the "osl::Thread::create failed" error now. I could send
a memory dump or a guide on how to reproduce it, if its of interest to someone
of you.
Not sure about that though, because it has nothing to do with "Calculation
error for CHIINV function".
Java-Heapspace is a big mystery and problem in LibO as it seems, I'm still
doing tests in this regard and will file a separate bugreport on that soon
(hopefully).

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #23 from bugzil...@cb-computerservice.at ---
I already was about to file a report on the heap space issue, but the way that
I thought I could reproduce it didn't really work :/ I don't think its useful
to open a bug report on that, when I can't offer a way to demonstrate it. If I
find a way to make it reproducible I'll file the report.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #22 from Aron Budea  ---
(In reply to bugzilla2 from comment #21)
> Since this is the only bug  found which mentions "osl::Thread::create
> failed", I'll add my comment to this one, even though it happened in writer
> for me, not calc.
Mentioning that error was just a side comment, please open a new bug report.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #21 from bugzil...@cb-computerservice.at ---
Since this is the only bug  found which mentions "osl::Thread::create failed",
I'll add my comment to this one, even though it happened in writer for me, not
calc.

I just had this Error: "LibreOffice 7.0 - Fatal Error", "osl::Thread::create
failed". I use 32Bit LibO on 64Bit Windows. All I did was to open a
writer-document with a table in it and wanted to add one line, when the message
came up. One important note is, that I use LangTool-Extension which uses Java.
And I have read above, that heap space somehow is involved in this.

As for my tests with langtool the last weeks (a lot of bugs were fixed there)
it seems to me, that 32Bit LibO has an issue with allocating heap space.
Because sometimes LibO itself sets the heap space so big, that LibO cant handle
it. If I set the heap space manually to more than 755M, LibO shows a message on
start that JRE is not working, so 755MB is the limit as it seems. But LibO
itself seems to allocate more heaps space in some conditions and then fails.

I wanted to create a separate bug on the heaps space issue, but it fits in here
now :) Tell me if I shall open a separate bug for that.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Aron Budea  changed:

   What|Removed |Added

 Blocks||126862


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=126862
[Bug 126862] [META] Issues with unusual builds / unit tests
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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #20 from sudhanshu arora  ---
Thank you to share your thoughs.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Roman Kuznetsov <79045_79...@mail.ru> changed:

   What|Removed |Added

 Blocks||108827


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=108827
[Bug 108827] [META] Calc functions bugs and enhancements
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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Roman Kuznetsov <79045_79...@mail.ru> changed:

   What|Removed |Added

 Blocks||109324


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=109324
[Bug 109324] [META] Calculate bugs and enhancements
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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Aron Budea  changed:

   What|Removed |Added

 Status|ASSIGNED|NEW
   Assignee|ba...@caesar.elte.hu|libreoffice-b...@lists.free
   ||desktop.org

--- Comment #19 from Aron Budea  ---
Let me unassign myself to avoid any confusion.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Xisco Faulí  changed:

   What|Removed |Added

 Status|NEW |ASSIGNED
   Assignee|libreoffice-b...@lists.free |ba...@caesar.elte.hu
   |desktop.org |

--- Comment #16 from Xisco Faulí  ---
Assigning it to Aron for the time being...

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #15 from Aron Budea  ---
Very peculiar, in both cases the first 13 iterations of the while loop in
lcl_IterateInverse(...) ("inverse quadric interpolation with additional
brackets") are the exact same.

Then in the 14th iteration, this diverges:
fRy = rFunction.GetValue(fSx);<= rfunction is ScChiDistFunction

fRy becomes:
- in the good case: 0
- in the bad case: -4.6945954068622342e-17

However, in both cases the result of ScChiDistFunction::GetValue(...) is
supposed to be:
0.99911 - 0.99911
(return fp - rInt.GetChiDist(x, fDF);)

Surely the displayed value doesn't reflect the actual double value.


In the good case, the while loop exits afterwards, because this part of the
condition is false: fabs(fRy) > fYEps
In the bad case the while loop does an extra 3 iterations, which results in the
final discrepancy.

For the record, in the bad case the equality check only passes with 1 digit of
rounding, ie. ROUNDSIG(A8;1)

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Winfried Donkers  changed:

   What|Removed |Added

 Status|ASSIGNED|NEW
   Assignee|winfrieddonkers@libreoffice |libreoffice-b...@lists.free
   |.org|desktop.org

--- Comment #14 from Winfried Donkers  ---
Unassigning myself, as a quick fix proved not to fix anything at all and I find
it hard to find time to work on it in the very near future.

@Aaron: Should you have question, please feel free to ask. No guarantee that I
can answer within hours, nor that I will know the answer ;-)

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Xisco Faulí  changed:

   What|Removed |Added

 CC||xiscofa...@libreoffice.org
   Assignee|libreoffice-b...@lists.free |winfrieddonkers@libreoffice
   |desktop.org |.org

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #11 from Aron Budea  ---
(In reply to Winfried Donkers from comment #10)
> Updated unittest document for CHIINV to be tested on 32bit platforms.
> Open document and recalculate entire document, all result in column B of tab
> 1 should be green (TRUE). If not, please inform me which rows in tab 2 are
> red (FALSE) in column C.

Thanks for taking a stab at this! Unfortunately the issue is the same with the
ROUNDSIG equality check, C8 is false when the other 15 unit test spreadsheets
are also open together with the new one.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #10 from Winfried Donkers  ---
Created attachment 141374
  --> https://bugs.documentfoundation.org/attachment.cgi?id=141374=edit
updated unittest document for CHIINV

Updated unittest document for CHIINV to be tested on 32bit platforms.
Open document and recalculate entire document, all result in column B of tab 1
should be green (TRUE). If not, please inform me which rows in tab 2 are red
(FALSE) in column C.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Winfried Donkers  changed:

   What|Removed |Added

 Status|NEW |ASSIGNED

--- Comment #9 from Winfried Donkers  ---
In 2017 a function ROUNDSIG has been introduced to cope with rounding problems
like these. I will update the unittest document for CHIINV, but cannot test it
on 32 bit systems.

@Alex, @Aaron: if I upload  an updated unittest document as attachment to this
bug report, can you test if this updated document no longer has  the reported
problems?

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Aron Budea  changed:

   What|Removed |Added

   Hardware|All |x86 (IA32)
 OS|Linux (All) |All

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Aron Budea  changed:

   What|Removed |Added

 Status|CLOSED  |UNCONFIRMED
 CC||ba...@caesar.elte.hu
 Resolution|WORKSFORME  |---
 Ever confirmed|1   |0

--- Comment #8 from Aron Budea  ---
I was going to open a new bug report, when stumbled upon this. It's
reproducible with a 32-bit master (0fe5d61ad2c9e21f393bdad4b706e398728a70d8)
Windows debug build for me.

- Open test files from 'sc\qa\unit\data\functions\statistical\fods', the ones
from 'avedev.fods' to 'chiinv.fods' (16 files altogether, in alphabetical
order).
- Do a full recalc of 'chiinv.fods'.

=> Sheet2's C8 becomes false. CHIINV(0.999; 10) is evaluated to
0.005090405273006 instead of the expected 0.005035400390625.

After further opening/closing files, sometimes I get errors on failed thread
creation ("osl::Thread::create failed", in the logs: "_beginthreadex
undocumented errno ENOMEM - this means not enough VM for stack"). This might be
a red herring, I'd assume the unit tests are executed one by one, and don't run
out of resources.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Aron Budea  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
 Ever confirmed|0   |1

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #7 from Alex Kempshall  ---
On 16/09/16 11:05, Stephan Bergmann wrote:
>
> Turns out, the relevant GCC switches are
>
>   -mfpmath=sse -msse2
>

On this basis I ran

make clean && make ENVCFLAGS="-mfpmath=sse -msse2" ENVCFLAGSCXX="-mfpmath=sse
-msse2" && make sc.check

The compile and tests all completed successfully on an up to date 32-bit
Lubuntu 14.04 and 32-bit Slackware-Current from November 2015. I haven't pulled
any new code since 1st September so haven't inadvertently picked up the work
around about disabling the tests.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Eike Rathke  changed:

   What|Removed |Added

 Status|RESOLVED|CLOSED

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Eike Rathke  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |WORKSFORME

--- Comment #6 from Eike Rathke  ---
(In reply to Luke from comment #4)
> Alex are you sure 5.1.4.2 is passing? Are you pressing Shift+Ctrl+F9? For me
> the 32-bit Version: 5.1.4.2 Build ID: 1:5.1.4-0ubuntu1 and Excel both fail.

Note that the function tests in question are not part of 5.1, this is
specifically about current master 32-bit builds failing.

Anyway, we now disabled the tests for 32-bit builds until a more detailed
solution is available as not only one or two tests are affected.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Luke  changed:

   What|Removed |Added

   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=10
   ||1838

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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Luke  changed:

   What|Removed |Added

URL||http://nabble.documentfound
   ||ation.org/Test-File-sc-qa-u
   ||nit-data-functions-fods-chi
   ||inv-fods-fails-with-Asserti
   ||on-tp4192267.html

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #5 from Alex Kempshall  ---
Luke


LO Version 5.3.0.0.alpha 0+ compiled from source on 32bit Lubuntu 14.04LTS, the
chiinv calculation results in 0.005090405273006

LO Version 5.3.0.0.alpha 0+ compiled from source on 32bit Slackware 14.2 ( a
few months out of date), the chiinv calculation results in 0.005090405273006

LO Version 5.0.2.2 downloaded from Fresh some time ago on 32bit Slackware 14.2
( a few months out of date), the chiinv calculation results in 0.0050904053

LO Version 5.0.0.5 installed using apt-get on 32bit Lubuntu 14.04LTS, the
chiinv calculation results in 0.0050904053

LO Version 5.1.4.2 downloaded from Still on an up to date 32bit Slackware 14.1,
the chiinv calculation  results in 0.0050354004

LO Version 5.1.4.2 downloaded from Still on 32bit Slackware 14.2 ( a few months
out of date), the chiinv calculation results in 0.0050904053

The number of places after the decimal point is something I may have changed
under options or some such place. Can't find where that option was now! Anyway
I seem to remember that I reduced it from something like 15 to 12, don't rely
on my memory it could have been 15 to 10. As I say I can't remember where I
changed it or on what version. Probably not important as the results diverge
after the 5th decimal place.


So at the moment it looks like that LO version 5.1.4.2 calculates -

0.0050904053 on 32bit Slackware 14.2 ( a few months out of date)
0.0050354004 on an up to date 32bit Slackware 14.1

In other words it looks to me that the same binaries give different results on
different platforms.

Everything above other than the up to date 32bit Slackware 14.1 (my production
platform) is running in VirtualBox

Alex

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Luke  changed:

   What|Removed |Added

 CC||zdenek.crho...@seznam.cz

--- Comment #4 from Luke  ---
Alex are you sure 5.1.4.2 is passing? Are you pressing Shift+Ctrl+F9? For me
the 32-bit Version: 5.1.4.2 Build ID: 1:5.1.4-0ubuntu1 and Excel both fail.

5.1.4.2 Ubuntu Calc  A8=0.0050904053
Excel 2013   A8=0.0050903836
Gnumeric A8=0.0050903836
Expected/Win32/Win64/Linx64  A8=0.0050354004

It seems that our 32-bit Linux floating point math is closer to Excel than our
64-bit. Should 32 and 64-bit builds get the same results? Or should we drop the
accuracy of the test? 
C8=ROUND(A8,3)=ROUND(B8,3) 
Will pass all versions. 


CHIINV Was added with:
commit 1fe44f6e9763203689c6d98aef82b5141d95410e
Author: Zdeněk Crhonek 
Date:   Thu Aug 18 22:56:35 2016 +0200

Is this when the 32-bit tinderboxes started failing?

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Eike Rathke  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
 Ever confirmed|0   |1

--- Comment #3 from Eike Rathke  ---
See also recent tinderbox Linux-rpm_deb-x86_71-TDF and
Linux-rpm_deb-x86_71-TDF-dbg builds.

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

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https://bugs.documentfoundation.org/show_bug.cgi?id=101837

--- Comment #2 from Alex Kempshall  ---
Had another look at this one and it suspiciously looks looks a rounding error.
Pushed the numbers through the medcalc website and compared it with Calc. The
precision on medcalc is 9 digits after the decimal point whereas for calc it's
15 digits after the decimal point. I've increased the precision each time from
0.9 to 0.999. Everything seems in order until we get to the last
iteration. 

CalcMedCalc

4.865182051925334.865182052 FALSE   =CHIINV(F25,G25)1  
0.9 10
2.558212160187212.55821216  FALSE   =CHIINV(F26,G26)2  
0.9910
1.478743463835671.478743464 FALSE   =CHIINV(F27,G27)3  
0.999   10
0.888920357912875   0.888920358 FALSE   =CHIINV(F28,G28)4  
0.  10
0.545169540878432   0.545169541 FALSE   =CHIINV(F29,G29)5  
0.9 10
0.338126003244954   0.338126003 FALSE   =CHIINV(F30,G30)6  
0.9910
0.211104115873973   0.211104116 FALSE   =CHIINV(F31,G31)7  
0.999   10
0.132327944421752   0.132327944 FALSE   =CHIINV(F32,G32)8  
0.  10
0.083152274011688   0.083152274 FALSE   =CHIINV(F33,G33)9  
0.9 10
0.052331066501630.052331067 FALSE   =CHIINV(F34,G34)10 
0.9910
0.032965528624475   0.032965455 FALSE   =CHIINV(F35,G35)11 
0.999   10
0.020778597606181   0.020778598 FALSE   =CHIINV(F36,G36)12 
0.  10
0.013099986480001   0.0131029   FALSE   =CHIINV(F37,G37)13 
0.9 10
0.008262202343253   0.008262202 FALSE   =CHIINV(F38,G38)14 
0.9910
0.005090405273006   0.005211772 FALSE   =CHIINV(F39,G39)15 
0.999   10

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[Libreoffice-bugs] [Bug 101837] EDITING: Calculation error for CHIINV function

[bugzilla-daemon]

https://bugs.documentfoundation.org/show_bug.cgi?id=101837

Eike Rathke  changed:

   What|Removed |Added

 CC||er...@redhat.com,
   ||markus.mohrhard@googlemail.
   ||com, r...@post.cz,
   ||winfrieddonkers@libreoffice
   ||.org

--- Comment #1 from Eike Rathke  ---
So this seems to point out the weird build failures we had with the function
test documents that weren't reproducible on other systems. Adding interests to
Cc ...

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