Can I raise a Java BigInteger to a double/float power?

问题

I'm a .NET developer, but apparently no library exists to do this in .NET. So, is there any BigInteger implementation in Java that allows raising a BigInteger to a double exponent:

BigInteger result = BigInteger.pow( base, dblExponent);
// Base is a BigInteger, dblExponent is a double.

回答1:

try this:

BigInteger base = new BigInteger("10");
double base1 = base.doubleValue();
double dblExponent = 10;
double res = pow(base1, dblExponent);
BigDecimal result = new BigDecimal(res);

but pay attention to precision issues

EDIT: you have to import this library: import static java.lang.Math.pow;

来源：https://stackoverflow.com/questions/16751167/can-i-raise-a-java-biginteger-to-a-double-float-power