C sinh() function

C sinh() function - Hyperbolic sine functions


double sinh(double x)

The sinh() function is used to calculate the hyperbolic sine of x.


Name Description Required /Optional
x Angle in radians. Required

Return value from sinh()

  • Returns the value of the hyperbolic sine of x.

Example: sinh() function

The following example shows the usage of sinh() function.

#include <math.h>
#include <stdio.h>
int main(void)
   double pi, x, y; 
   pi = 3.1415926535;
   x = pi/2;
   y = sinh(x); 
   printf("sinh( %lf ) = %lf\n", x, y);


sinh( 1.570796 ) = 2.301299

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C Programming: Tips of the Day

What's the point of const pointers?

const is a tool which you should use in pursuit of a very important C++ concept:

Find bugs at compile-time, rather than run-time, by getting the compiler to enforce what you mean.

Even though it does not change the functionality, adding const generates a compiler error when you're doing things you didn't mean to do. Imagine the following typo:

void foo(int* ptr)
    ptr = 0;// oops, I meant *ptr = 0

If you use int* const, this would generate a compiler error because you're changing the value to ptr. Adding restrictions via syntax is a good thing in general. Just don't take it too far -- the example you gave is a case where most people don't bother using const.

Ref : https://bit.ly/33Cdn3Q