package open;

public class sanjiao {
	
public double sanjiao(String a,double b) {
	double c=Math.toRadians(b);
	if(a=="sin")
		return Math.sin(c);
	else if(a=="cos")
		return Math.cos(c);
	else if(a=="tan")
		return Math.tan(c);
	return 0;
}

}