6.11.170 sinh Function

Calculates the hyperbolic sine function of a double precision floating-point value.

Include

<math.h>

Prototype

double sinh (double x);

Argument

x

value for which to return the hyperbolic sine

Return Value

Returns the hyperbolic sine of x.

Remarks

If x is too large, a range error will occur and errno will be set to ERANGE.

Example

See the notes at the beginning of this chapter or section for information on using printf() or scanf() (and other functions reading and writing the stdin or stdout streams) in the example code.

#include <math.h>
#include <stdio.h>
#include <errno.h>

int main(void)
{
  double x, y;

  errno = 0;
  x = -1.5;
  y = sinh (x);
  if (errno)
    perror("Error");
  printf("The hyperbolic sine of %f is %f\n",
          x, y);

  errno = 0;
  x = 0.0;
  y = sinh (x);
  if (errno)
    perror("Error");
  printf("The hyperbolic sine of %f is %f\n",
          x, y);

  errno = 0;
  x = 720.0;
  y = sinh (x);
  if (errno)
    perror("Error");
  printf("The hyperbolic sine of %f is %f\n",
          x, y);
}

Example Output

The hyperbolic sine of -1.500000 is -2.129279
The hyperbolic sine of 0.000000 is 0.000000
Error: range error
The hyperbolic sine of 720.000000 is inf