sinh(3M)

NAME
     sinh, cosh, tanh, fsinh, sinhf, fcosh, coshf, ftanh, tanhf, sinhl,
     coshl, tanhl - hyperbolic functions

SYNOPSIS
     #include <math.h>

     double sinh(double x);
     float fsinh(float x);
     float sinhf(float x);
     long double sinhl(long double x);

     double cosh(double x);
     float fcosh(float x);
     float coshf(float x);
     long double coshl(long double x);

     double tanh(double x);
     float ftanh(float x);
     float tanhf(float x);
     long double tanhl(long double x);

IMPLEMENTATION
     IRIX systems

DESCRIPTION
     The long double and single-precision routines listed above are only
     available in the standard math library, -lm and in -lmx.

     These functions compute the designated hyperbolic functions for
     double, float, and long double arguments.

   Errors
     Below 2.4 ULPs; a ULP is one Unit in the Last Place.

NOTES
     Long double operations on this system are only supported in round-to-
     nearest rounding mode (the default).  The system must be in round-to-
     nearest rounding mode when calling any of the long double functions,
     or incorrect answers will result.

     Users concerned with portability to other computer systems should note
     that the long double and float versions of these functions are
     optional according to the ANSI C Programming Language Specification
     ISO/IEC 9899 : 1990 (E).

     Long double functions have been renamed to be compliant with the
     ANSI-C standard, however to be backward compatible, they may still be
     called with the double precision function name prefixed with a q.

RETURN VALUES
     Functions in the standard math library libm.a, are referred to as -lm
     versions. Those in math library libmx.a are referred to as -lmx
     versions. Those in the the BSD math library libm43.a are referred to
     as -lm43 versions.

     The -lm and -lmx versions always return the default Quiet NaN and set
     errno to EDOM when a NaN is used as an argument.  A NaN argument
     usually causes the -lm43 versions to return the same argument.  The
     -lm43 versions never set errno.

     The value of HUGE_VAL is IEEE Infinity.

     If the correct result would overflow, the cosh functions return
     HUGE_VAL.  The sinh functions return HUGE_VAL for positive x and
     -HUGE_VAL for negative x. The -lm versions also set errno to ERANGE
     for any overflow.

     See matherr(3M) for a description of error handling for -lmx
     functions.


SEE ALSO
     math(3M), matherr(3M)

     This man page is available only online.