Real cube root of a negative number

Question

I\'m trying to see if there is a function to directly get the real cube root of a negative number. For example, in Java, there is the Math.cbrt() function. I\'m

Answer 1

In Java something like this :

There are 3 cube-roots. Assuming you want the root that is real, you should do this:

x = 8;  //  Your value

if (x > 0)
    System.out.println(Math.pow(x, 1.0 / 3.0));
else
    System.out.println(-Math.pow(-x, 1.0 / 3.0));