go-tour-48.go

package main

import "fmt"

func Cbrt(x complex128) complex128 {
    var z complex128 = 1
    for i:=0; i < 10000000; i++ {
        z = z - ((z * z * z - x) / 3 * z * z)
    }
    return z
}

func main() {
    fmt.Println(Cbrt(2))
}