cuberoot function

Cube-root that retains its argument's sign

Computes $(x_1^{1/3}, \ldots, x_n^{1/3})$ with $x_i^{1/3}$ being negative if $x_i < 0$.

cuberoot(x)

Arguments

• x: Numeric vector.

Returns

Vector of same length and mode as input.

Examples

kader:::cuberoot(x = c(-27, -1, -0, 0, 1, 27))

curve(kader:::cuberoot(x), from = -27, to = 27)