java.lang.Math.cosh(double a) java.lang.Math.cos(double a) java.lang.Math.exp(double a) java.lang.Math.cosh(double a) package com.codingdict; import java.lang.*; public class MathDemo { public static void main(String[] args) { // get two double numbers double x = 45.0; double y = 180.0; // convert them to radians x = Math.toRadians(x); y = Math.toRadians(y); // print their hyperbolic cosine System.out.println("Math.cosh(" + x + ")=" + Math.cosh(x)); System.out.println("Math.cosh(" + y + ")=" + Math.cosh(y)); } } java.lang.Math.cos(double a) java.lang.Math.exp(double a)