编辑器
public class Main { public static void main(String[] args) { System.out.println(Math.cos(3)); System.out.println(Math.cos(-3)); System.out.println(Math.cos(0)); System.out.println(Math.cos(Math.PI)); System.out.println(Math.cos(Math.PI/2)); } }
-0.9899924966004454
-0.9899924966004454
1.0
-1.0
6.123233995736766E-17
编辑器