# Java.lang.Math.sinh() Method

## Description

The java.lang.Math.sinh(double x) the the hyperbolic sine of a double value. The hyperbolic sine of x is defined to be (ex - e-x)/2 where e is Euler's number.Special cases −

• If the argument is NaN, then the result is NaN.

• If the argument is infinite, then the result is an infinity with the same sign as the argument.

• If the argument is zero, then the result is a zero with the same sign as the argument.

The computed result must be within 2.5 ulps of the exact result.

## Declaration

Following is the declaration for java.lang.Math.sinh() method

```public static double sinh(double x)
```

## Parameters

x − The number whose hyperbolic sine is to be returned.

## Return Value

This method returns the hyperbolic sine of x.

NA

## Example

The following example shows the usage of lang.Math.sinh() method.

```package com.tutorialspoint;

import java.lang.*;

public class MathDemo {

public static void main(String[] args) {

// get two double numbers numbers
double x = 45;
double y = -180;

// print the hyperbolic sine for these doubles
System.out.println("sinh(" + x + ")=" + Math.sinh(x));
System.out.println("sinh(" + y + ")=" + Math.sinh(y));
}
}
```

Let us compile and run the above program, this will produce the following result −

```sinh(0.7853981633974483)=0.8686709614860095
sinh(-3.141592653589793)=-11.548739357257748
```
java_lang_math.htm