[kalgebra] [Bug 402637] KAlgebra produces wrong output on functions like root(x, 3) or x^(1/3)

https://bugs.kde.org/show_bug.cgi?id=402637 Aleix Pol changed: What|Removed |Added Resolution|--- |FIXED Status|REPORTED

[kalgebra] [Bug 402637] KAlgebra produces wrong output on functions like root(x, 3) or x^(1/3)

https://bugs.kde.org/show_bug.cgi?id=402637 MatFi changed: What|Removed |Added CC||k...@endof.de --- Comment #3 from MatFi --- > Even

[kalgebra] [Bug 402637] KAlgebra produces wrong output on functions like root(x, 3) or x^(1/3)

https://bugs.kde.org/show_bug.cgi?id=402637 --- Comment #2 from Aleix Pol --- KAlgebra doesn't use qalc, yet we probably use the same API hence the same behaviour. https://en.cppreference.com/w/cpp/numeric/complex/pow Even wolfram shows it:

[kalgebra] [Bug 402637] KAlgebra produces wrong output on functions like root(x, 3) or x^(1/3)

https://bugs.kde.org/show_bug.cgi?id=402637 --- Comment #1 from Alexander Kernozhitsky --- So, basically, there are two issues: 1) If qalculate returns complex number, KAlgebra uses only its real part, which produces wrong answer 2) root(-8;3) = -2 in qalculate, but seems that root(x;y) is