Java BigInteger Power pow(BigInteger base, BigInteger exponent)

Description

pow

License

Open Source License

Declaration

public static BigInteger pow(BigInteger base, BigInteger exponent) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.math.BigInteger;

public class Main {
    public static BigInteger pow(BigInteger base, BigInteger exponent) {
        BigInteger result = BigInteger.ONE;
        while (exponent.signum() > 0) {
            if (exponent.testBit(0))
                result = result.multiply(base);
            base = base.multiply(base);/*from w w w.j av a  2  s. c  o  m*/
            exponent = exponent.shiftRight(1);
        }
        return result;
    }
}

Related

1. Power(BigInteger base, int exp)
2. powerToEnergy(BigInteger power, Integer ptuDuration)