Java exponents. Why can't i put this to the power of something?

Question

How can I square the value in the parentheses in Java?

(x1-x2)

Answer 1

Well ... use the 'pow' function ...

Answer 2

Use pow() method in Math class. The syntax is Math.pow(double a, double b); Need to cast the numbers to double type.

double result = Math.pow ((double)(x1-x2), (double)2);