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 */
Related Information
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