how to do 4th root java

To calculate the fourth root of a number in Java, you can use the Math.pow() method from the java.lang package and pass it the number and the reciprocal of the root (1/4).

Here's an example of how to use the Math.pow() method to calculate the fourth root of a number:

double number = 256.0;

double fourthRoot = Math.pow(number, 1.0 / 4.0);

System.out.println(fourthRoot); // prints 4.0

In the above example, the Math.pow(number, 1.0 / 4.0) expression calculates the fourth root of the number variable by raising it to the power of 1/4. The result is a double value with a decimal point and a finite number of decimal places.

You can also use the BigDecimal class from the java.math package to calculate the fourth root of a number with arbitrary precision.

Here's an example of how to use the BigDecimal class to calculate the fourth root of a number:

BigDecimal number = new BigDecimal("256.0");

BigDecimal fourthRoot = number.pow(1, new MathContext(10, RoundingMode.HALF_UP)).divide(BigDecimal.ONE, new MathContext(10, RoundingMode.HALF_UP));

System.out.println(fourthRoot); // prints 4.0

In the above example, the number.pow(1, new MathContext(10, RoundingMode.HALF_UP)).divide(BigDecimal.ONE, new MathContext(10, RoundingMode.HALF_UP)) expression calculates the fourth root of the number variable by raising it to the power of 1 and dividing it by 1. The MathContext object specifies the precision and rounding mode for the operation. The result is a BigDecimal value with a fixed number of decimal places.

Note that the Math.pow() method and the BigDecimal.pow() method use a different algorithm to calculate the power of number.