QuadraticEq.java public class QuadraticEq { public static void main(String[] args) { double a = 1.0; double b = -3.0; double c = 2.0; double x,y; x=(-b+Math.sqrt(b*b-4*a*c))/(2*a); y=(-b-Math.sqrt(b*b-4*a*c))/(2*a); System.out.println("근은"+x); System.out.println("근은"+y); } } Math.sqrt()메소드 호출한 코드 QuadraticEq_book.java public class QuadraticEq_book { public static void main(String[] args) { doubl..
