◄Description► ◄Example► ◄Up► ◄Contents► ◄Index► ◄Back► ─────Run-Time Library─────────────────────────────────────────────────────── Include: <math.h>, <errno.h> Syntax: double cosh( double x ); double sinh( double x ); double tanh( double x ); Returns: (cosh) the hyperbolic cosine of <x>, or HUGE_VAL if the result is too large. (sinh) the hyperbolic sine of <x> if successful, or ±HUGE_VAL if not. (tanh) the hyperbolic tangent of <x>. errno: ERANGE See also: cos, acos, _cosl, _matherr -♦-