https://bugs.documentfoundation.org/show_bug.cgi?id=137679
Bug ID: 137679
Summary: Implement a Kahan summation algorithm for reduce the
numerical error in the total
Product: LibreOffice
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: enhancement
Priority: medium
Component: Calc
Assignee: [email protected]
Reporter: [email protected]
Description:
Implement a Kahan summation algorithm for reduce the numerical error in the
total
https://en.wikipedia.org/wiki/Kahan_summation_algorithm
Eike already wrote about it in
https://git.libreoffice.org/core/+/5ac74f15dcdf85faa2ac1cb7317ea77e31fbcd50%5E%21/#F0
It should give an effect for SUM and AVERAGE function
A code point here is
https://opengrok.libreoffice.org/xref/core/sc/source/core/tool/interpr6.cxx?r=08e85556&mo=15551&fi=511#511
Steps to Reproduce:
-
Actual Results:
Today we have some problems with a calculation accuracy for floating-point
numbers
Expected Results:
We'll have reduce the numerical error in the total for floating-point numbers
Reproducible: Always
User Profile Reset: No
Additional Info:
-
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