Syntax

#include <math.h>
double cosh(double x);

cosh calculates the hyperbolic cosine of x. The value x is expressed in radians.

cosh returns the hyperbolic cosine of x. If the result is too large, cosh returns the value HUGE_VAL and sets errno to ERANGE.

This example calculates y to be the hyperbolic cosine of x.

#include <math.h>

int main(void)
{
   double x,y;

   x = 7.2;
   y = cosh(x);
   printf("cosh( %lf ) = %lf\n", x, y);
   return 0;

   /****************************************************************************
     The output should be:

     cosh( 7.200000 ) = 669.715755
   ****************************************************************************/
}

• acos
  
• cos
  
• sin
  
• sinh
  
• tan
  
• tanh

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