HP-UX Reference (11i v3 07/02) - 3 Library Functions N-Z (vol 7)

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sinh(3M) sinh(3M)

NAME

sinh( ), sinhf( ), sinhl(), sinhw(), sinhq( ) - hyperbolic sine functions

SYNOPSIS

#include <math.h>

double sinh(double x);

float sinhf(float x);

HP Integrity Server Only

long double sinhl(long double x);

extended sinhw(extended x);

quad sinhq(quad x);

DESCRIPTION

sinh() returns the hyperbolic sine of x.

sinhf() is a float version of sinh(); it takes a float argument and returns a float

result.

Integrity Server Only

sinhl() is a long double version of sinh(); it takes a long double argument and returns a

long double result.

sinhw() is an extended version of sinh(); it takes an extended argument and returns an

extended result.

sinhq() is equivalent to sinhl() on HP-UX systems.

USAGE

To use these functions, compile either with the default -Ae option or with the -Aa

and

-D_HPUX_SOURCE options.

To use (for Integrity servers)

sinhw() or sinhq(), compile also with the -fpwidetypes

option.

To use any of these functions, make sure your program includes

<math.h>, and link in the math library

by specifying -lm on the compiler or linker command line.

For more information, see the HP-UX ﬂoating-point guide for HP Integrity servers at the following site:

http://www.hp.com/go/fp

RETURN VALUE

sinh(±0) returns ±0.

If x is ±INFINITY, sinh() returns ±INFINITY respectively.

If x is NaN,

sinh() returns NaN.

sinh() returns a properly signed inﬁnity (equal to ±HUGE_VAL ) in lieu of a value whose magnitude is

too large, and raise the overﬂow and inexact exceptions.

When it raises no other exception, whether sinh() raises the inexact exception is unspeciﬁed.

ERRORS

If the correct value would overﬂow, sinh() sets errno to [ERANGE].

Integrity Server Only

HP-UX libm functions on Integrity servers do not set errno by default. For errno setting, compile

with the +Olibmerrno option.