/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		double deg =30, rad;
		rad = Math.toRadians(deg);
 
		double s =Math.sin(rad);
		double c =Math.cos(rad);
		double t =Math.tan(rad);
 
		System.out.println( "角度" +deg + "度");
		System.out.println("sin "+(float)s);
		System.out.println("cos "+(float)c);
		System.out.println("tan "+(float)t);
	}
}
 

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