Click above to get retro games delivered to your door ever month!

   cosh

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

   Description
   Calculates the hyperbolic cosine of x.

   Example
   #include <math.h>
   #include <stdio.h>
   main()
   {
   double value = 2.5556, hycos;
        hycos = cosh(value);
        printf("The hyperbolic cosine of %f is %f\n",value,hycos);
   }

   Return Value
   cosh  returns  the  hyperbolic cosine of x. HUGE_VAL  is  returned  on
   overflow, 0 on any other error and errno is set. Error handling can be
   modified with matherr.