Hyperbolic cosine function
View other versions (4)
Contents  |
|
Interface
#include <math.h>
| double | cosh (double x) |
| long | coshl (long double x) |
| float | coshf (float x) |
Description
The
cosh function computes the hyperbolic cosine of
x, which is defined through:
Example 1:
#include <stdio.h>
#include <math.h>
int main(void)
{
double x = 0.5;
double result = cosh(x);
printf("The hyperbolic cosine of %lf is %lf\n", x, result);
return 0;
}
Output:
The hyperbolic cosine of 0.500000 is 1.127626
Special Values
cosh (
±0 ) returns 1.
cosh (
±∞ ) returns +∞.
See Also
acos,
asin,
atan,
atan2,
cos,
sin,
sinh,
tan,
tanhStandards
The
cosh function conforms to ISO/IEC 9899:1999(E).
Last Modified: 2009-11-01 08:45:35 Page Rendered: 2010-03-15 02:51:14
All Modules
