HP-UX Reference (11i v2 03/08) - 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);

Itanium(R)-based System 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.

Itanium-based System 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 Itanium-based systems)

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.

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].

Itanium-based System Only

HP-UX

libm functions on Itanium-based systems do not set errno by default. For errno setting, com-

pile with the +Olibmerrno option.