https://bugs.documentfoundation.org/show_bug.cgi?id=142933
Bug ID: 142933
Summary: Use Kahan summation algorithm for "+" and "+"
operators
Product: LibreOffice
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: enhancement
Priority: medium
Component: Calc
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: mikekagan...@hotmail.com
CC: dante19031...@gmail.com, er...@redhat.com
Chained summation operations like "=1.5+2^52-2^52" could benefit from Kahan
algorithm implemented in tdf#137679. To do that, possibly we should change
tokenizer (?), so that it treats several summation operations on the same level
as one operation analogous to SUM.
It should definitely not chain summations grouped by parentheses (I guess, it
would be automatic, since operations inside parentheses are not "on the same
level"). So e.g. "=(1.5+2^52)-2^52" would still return 2.
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