Format
#include <math.h>
double cosh(double x);
Language Level: ANSI
Threadsafe: Yes.
Description
The cosh() function calculates the hyperbolic cosine of x. The value x is expressed in radians.
Return Value
The cosh() function returns the hyperbolic cosine of x. If the result is too large, cosh() returns the value HUGE_VAL and sets errno to ERANGE.
Example that uses cosh()
This example calculates y to be the hyperbolic cosine of x.
#include <math.h>
#include <stdio.h>
int main(void)
{
double x,y;
x = 7.2;
y = cosh(x);
printf("cosh( %lf ) = %lf\n", x, y);
}
/********************* Output should be similar to: *******************
cosh( 7.200000 ) = 669.715755
*/
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