সম্পাদনা
public class Main { public static void main(String[] args) { System.out.println(Math.atan2(0.5, 0.4)); System.out.println(Math.atan2(0.5, 0.5)); System.out.println(Math.atan2(0.5, 0.6)); } }
পূর্বরূপ
