https://bugs.kde.org/show_bug.cgi?id=409472
--- Comment #3 from David <[email protected]> --- (In reply to Christoph Feck from comment #1) > (-2)^(1/3) isn't mathematically defined. What you want is -(2^(1/3)). This is actually not true. Given an odd function f(x)=xⁿ, n an odd integer or n a fraction a/b with b an odd integer, implies f(-x)=-f(x) ∀x in the domain of f. Hence saying "(-2)^(1/3) is -(2^(1/3))" does not add any further information to what the definition already says. With regard to the calculator only, do you think is possible for kalgebra to use such a property to correctly & easily compute xⁿ for x<0? -- You are receiving this mail because: You are watching all bug changes.
