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StrictMath cosh() Method in Java
  • Last Updated : 19 Jul, 2018

The java.lang.StrictMath.cosh() is an inbuilt method in Java which returns the hyperbolic cosine value of a given double argument.

  • The method returns NaN when the argument is NaN.
  • The method returns a positive infinity when the argument is infinity.
  • The method returns 1.0 when the given argument is 0.0.

Syntax :

public static double cosh(double num)

Parameters: The method accepts one parameter num of double type whose hyperbolic cosine value is to be returned.

Return Value : The method returns the hyperbolic cosine value of num.

Examples :



Input: num = 60.0
Output: 5.710036949078421E25

Input: num = 0.0
Output: 1.0

Below programs illustrate the java.lang.StrictMath.cosh() method:
Program 1:




// Java praogram to illustrate the
// java.lang.StrictMath.cosh()
import java.lang.*;
  
public class Geeks {
  
    public static void main(String[] args)
    {
  
        double num1 = 78.8, num2 = 0.0, num3 = 1.0;
  
        // It returns the hyperbolic cosine of
        // specified angle in radian
        double coshvalue = StrictMath.cosh(num1);
        System.out.println("The cosh of "+
                     num1+" = " + coshvalue);
  
        coshvalue = StrictMath.cosh(num2);
        System.out.println("The cosh of "+
                     num2+" = " + coshvalue);
  
        coshvalue = StrictMath.cosh(num3);
        System.out.println("The cosh of "+
                     num3+" = " + coshvalue);
    }
}
Output:
The cosh of 78.8 = 8.344016962852523E33
The cosh of 0.0 = 1.0
The cosh of 1.0 = 1.543080634815244

Program 2:




// Java praogram to illustrate the
// java.lang.StrictMath.cosh()
import java.lang.*;
  
public class Geeks {
  
    public static void main(String[] args)
    {
  
        double num1 = (30 * (Math.PI)) / 180;
        double num2 = 11.0, num3 = 45.0;
  
        // It returns the hyperbolic cosine of 
        // angle in radian
        double coshvalue = StrictMath.cosh(num1);
        System.out.println("The cosh of "+
                     num1+" = " + coshvalue);
  
        coshvalue = StrictMath.cosh(num2);
        System.out.println("The cosh of "+
                     num2+" = " + coshvalue);
  
        coshvalue = StrictMath.cosh(num3);
        System.out.println("The cosh of "+
                     num3+" = " + coshvalue);    
    }
}
Output:
The cosh of 0.5235987755982988 = 1.1402383210764286
The cosh of 11.0 = 29937.070865949758
The cosh of 45.0 = 1.7467135528742547E19

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