Certainly! The cosh() function in C++ is a mathematical function that calculates the hyperbolic cosine of a given input. It is part of the <cmath> header and operates on floating-point values. The hyperbolic cosine of a number x is defined as (e^x + e^(-x)) / 2, where e is the base of the natural logarithm.
Here's an explanation of how to use the cosh() function in C++ with an example code:
#include <iostream>
#include <cmath>
int main() {
double x = 2.5;
double result = std::cosh(x);
std::cout << "The hyperbolic cosine of " << x << " is: " << result << std::endl;
return 0;
}
In the example code above, we include the necessary headers <iostream> and <cmath>. We then declare a variable x and initialize it with a value of 2.5, which represents the input to the cosh() function. Next, we call the std::cosh() function, passing x as the argument, and store the result in the result variable.
Finally, we use std::cout to display the result on the console, along with an informative message.
The output will be:
The hyperbolic cosine of 2.5 is: 6.13229
Note that the cosh() function returns a double value representing the hyperbolic cosine of the input. Make sure to compile and run the code using a C++ compiler to see the output.
