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man:sinhf

SINH(3) Linux Programmer's Manual SINH(3)

NAME

`     sinh, sinhf, sinhl - hyperbolic sine function`

SYNOPSIS

`     #include <math.h>`
```     double sinh(double x);
float sinhf(float x);
long double sinhl(long double x);```
`     Link with -lm.`
` Feature Test Macro Requirements for glibc (see feature_test_macros(7)):`
```     sinhf(), sinhl():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
|| /* Since glibc 2.19: */ _DEFAULT_SOURCE
|| /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE```

DESCRIPTION

```     These functions return the hyperbolic sine of x, which is defined math-
ematically as:```
`         sinh(x) = (exp(x) - exp(-x)) / 2`

RETURN VALUE

`     On success, these functions return the hyperbolic sine of x.`
`     If x is a NaN, a NaN is returned.`
`     If x is +0 (-0), +0 (-0) is returned.`
```     If x is positive infinity (negative infinity), positive infinity (nega-
tive infinity) is returned.```
```     If the result overflows, a range error occurs, and the functions return
HUGE_VAL, HUGE_VALF, or HUGE_VALL, respectively, with the same sign  as
x.```

ERRORS

```     See  math_error(7) for information on how to determine whether an error
has occurred when calling these functions.```
`     The following errors can occur:`
```     Range error: result overflow
errno is set to ERANGE.  An  overflow  floating-point  exception
(FE_OVERFLOW) is raised.```

ATTRIBUTES

```     For   an   explanation   of   the  terms  used  in  this  section,  see
attributes(7).```
```     allbox; lbw24 lb  lb  l  l  l.   Interface Attribute Value  T{  sinh(),
sinhf(), sinhl() T}   Thread safety  MT-Safe```

CONFORMING TO

`     C99, POSIX.1-2001, POSIX.1-2008.`
`     The variant returning double also conforms to SVr4, 4.3BSD, C89.`

`     acosh(3), asinh(3), atanh(3), cosh(3), csinh(3), tanh(3)`
```     This  page  is  part of release 4.16 of the Linux man-pages project.  A
`                                2017-09-15                           SINH(3)`