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cosh() function with example in C++

C++ cosh() function: Here, we are going to learn about the cosh() function with example of cmath header in C++ programming language?
Submitted by IncludeHelp, on April 28, 2019

C++ cosh() function

cosh() function is a library function of cmath header, it is used to find the hyperbolic cosine of the given value (hyperbolic angle), it accepts a number (x) and returns the hyperbolic cosine of x.

Syntax of cosh() function:


Parameter(s): x – is the number (hyperbolic angel) to be used to calculate the hyperbolic cosine.

Return value: double – it returns double type value that is the hyperbolic cosine of hyperbolic angle x.


    float x = 2.45;
    Function call:

C++ code to demonstrate the example of cosh() function

// C++ code to demonstrate the example of 
// cosh() function

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

// main() section
int main()
    float x;
    x = -10.23;
    cout<<"cosh("<<x<<"): "<<cosh(x)<<endl;

    x = 0;
    cout<<"cosh("<<x<<"): "<<cosh(x)<<endl;    

    x = 2.45;
    cout<<"cosh("<<x<<"): "<<cosh(x)<<endl;    
    return 0;


cosh(-10.23): 13861.2
cosh(0): 1
cosh(2.45): 5.83732

Reference: C++ cosh() function

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