https://bugs.kde.org/show_bug.cgi?id=402637
Bug ID: 402637
Summary: KAlgebra produces wrong output on functions like
root(x, 3) or x^(1/3)
Product: kalgebra
Version: unspecified
Platform: Debian testing
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: aleix...@kde.org
Reporter: sh200...@mail.ru
Target Milestone: ---
Created attachment 117143
--> https://bugs.kde.org/attachment.cgi?id=117143&action=edit
Screenshot
SUMMARY
STEPS TO REPRODUCE
Try to make plots for functions like x^(1/3) or root(x, 3) in KAlgebra.
Also (-8)^(1/3) gives 1, not -2.
OBSERVED RESULT
See the screenshot attached.
EXPECTED RESULT
The function plot looks properly, and (-8)^(1/3) gives -2 as a result.
ADDITIONAL INFORMATION
This seems to be a bug in Qalculate, which is used by KAlgebra, because qalc
gives the following as a result:
$ qalc
> (-8)^(1/3)
(-8)^(1 / 3) = approx. 1 + 1,7320508i
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