What is sinh() in C?

The sinh() function returns the hyperbolic sine of a number. To be more specific, it returns the hyperbolic sine of a number in the radians float value.

The figure below shows the mathematical representation of the sinh() function.

Syntax

double sinh(double num)

Parameter

This function requires a number that represents an angle in radians as a parameter.

Use the following formula to convert degrees to radians

radians = degrees * ( PI / 180.0 )

Return value

sinh() returns the hyperbolic sine of a numberin radians float value that is sent as a parameter.

Example

#include<stdio.h>
//header file
#include<math.h>

int main() {
    //positive number in radians
    printf("The hyperbolic sine of %lf is %lf \n", 2.3, sinh(2.3));

    // negative number in radians
    printf("The hyperbolic sine of %lf is %lf \n", -2.3, sinh(-2.3));

    //converting the degrees angle into radians and then applying sinh()
    // degrees = 45.0
    // PI = 3.14159265
    // result first converts degrees to radians then apply sinh
    double result=sinh(45.0 * (3.14159265 / 180.0));
    printf("The hyperbolic sine of %lf is %lf \n", 45.0, result);


}