sinh(3M) Mathematical Library Functions sinh(3M)
NAME
sinh, sinhf, sinhl - hyperbolic sine function
SYNOPSIS
cc [ flag... ] file... -lm [ library... ]
#include <math.h>
double sinh(double x);
float sinhf(float x);
long double sinhl(long double x);
DESCRIPTION
These functions compute the hyperbolic sine of x.
RETURN VALUES
Upon successful completion, these functions return the hyperbolic sine of x.
If the result would cause an overflow, a range error occurs and +-HUGE_VAL, +-HUGE_VALF, and +-HUGE_VALL (with the same sign as x) is
returned as appropriate for the type of the function.
If x is NaN, a NaN is returned.
If x is +-0 or +-Inf, x is returned.
For exceptional cases, matherr(3M) tabulates the values to be returned by acos() as specified by SVID3 and XPG3.
ERRORS
These functions will fail if:
Range Error The result would cause an overflow.
If the integer expression (math_errhandling & MATH_ERREXCEPT) is non-zero, the overflow floating-point exception is raised.
The asinh() function sets errno to ERANGE if the result would cause an overflow.
USAGE
An application wanting to check for exceptions should call feclearexcept(FE_ALL_EXCEPT) before calling these functions. On return, if
fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is non-zero, an exception has been raised. An application should
either examine the return value or check the floating point exception flags to detect exceptions.
An application can also set errno to 0 before calling asinh(). On return, if errno is non-zero, an error has occurred. The asinhf() and
asinhl() functions do not set errno.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
asinh(3M), cosh(3M), feclearexcept(3M), fetestexcept(3M), isnan(3M), math.h(3HEAD), matherr(3M), tanh(3M), attributes(5), standards(5)
SunOS 5.10 1 Sep 2002 sinh(3M)
