sinh(3M) Mathematical Library Functions sinh(3M)NAME
sinh, sinhf, sinhl - hyperbolic sine function
SYNOPSIS
c99 [ 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 feclearex‐
cept(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 ALSOasinh(3M), cosh(3M), feclearexcept(3M), fetestexcept(3M), isnan(3M),
math.h(3HEAD), matherr(3M), tanh(3M), attributes(5), standards(5)SunOS 5.11 12 Jul 2006 sinh(3M)
