Raise the power

static double exp(double a): Raise to the power of a double value.
static double expm1(double x): Returns ex -1.
static double pow(double a, double b): a raised to the power b.


public class Main {
  public static void main(String[] args) {

    System.out.println(Math.exp(2));
    System.out.println(Math.expm1(2.2));

    System.out.println(Math.pow(2,3));
  }
}

The output:


7.38905609893065
8.025013499434122
8.0