In this C++ tutorial, you will learn how to find the hyperbolic sine of an angle using sinh() function of cmath, with syntax and examples.

## C++ sinh()

C++ sinh() returns hyperbolic sine of an angle given in radians.

## Syntax

The syntax of C++ sinh() is

`sinh(x)`

where

Returns

The return value depends on the type of value passed for parameter x.

The return value of sinh(x) is

• double if x is double or integral type.
• float if x is float.
• long double if x is long double.

The synopsis of sinh() function is

```double sinh(double x);
float sinh(float x);
long double sinh(long double x);
double sinh(T x); // for integral type argument values```

sinh() is a function of cmath library. Include cmath library at the start of program, if using sinh() function.

## Example

In this example, we read the value of angle from user into variable x, and find the hyperbolic sine value of x using sinh() function.

C++ Program

```#include <iostream>
#include<cmath>
using namespace std;

int main() {
double x;
cout << "Enter angle (radians) : ";
cin >> x;

double result = sinh(x);
cout << "sinh(" << x << ") : " << result << endl;
}```

Output

```Enter angle (radians) : 2
sinh(2) : 3.62686
Program ended with exit code: 0```
```Enter angle (radians) : 0
sinh(0) : 0
Program ended with exit code: 0```
```Enter angle (radians) : -2.3
sinh(-2.3) : -4.93696
Program ended with exit code: 0```

## Conclusion

In this C++ Tutorial, we learned the syntax of C++ sinh(), and how to use this function to find hyperbolic sine of given angle, with the help of examples.