C++ <cmath> - cosh() Function

The C++ <cmath> cosh() function returns hyperbolic cosine of a value. The hyperbolic cosine of x is defined as:

where e is an Euler's number.

Syntax

C++98
C++11

double cosh (double x);
float cosh (float x);
long double cosh (long double x);

double cosh (double x);
float cosh (float x);
long double cosh (long double x);
//additional overloads for integral types
double cosh (T x);

Parameters

`x`	Specify the value.

Return Value

Returns the hyperbolic cosine of a value.

Example:

In the example below, cosh() function is used to find out the hyperbolic cosine of a value.

#include <iostream>
#include <cmath>
using namespace std;
 
int main (){
  cout<<cosh(0)<<"\n";
  cout<<cosh(2)<<"\n";
  cout<<cosh(4)<<"\n";
  return 0;
}

The output of the above code will be:

1
3.7622
27.3082

❮ C++ <cmath> Library