Jump to content United States-English
HP.com Home Products and Services Support and Drivers Solutions How to Buy
 Contact HP
More options
HP.com home
HP-UX Reference > S


HP-UX 11i Version 3: February 2007

Technical documentation

Content starts here

  Table of Contents



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


#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);


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.


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.


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.


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.


sinh() : SVID3, XPG4.2, ANSI C, ISO/IEC C99 (including Annex F, ``IEC 60559 floating-point arithmetic'')

sinhf(), sinhl() : ISO/IEC C99 (including Annex F, ``IEC 60559 floating-point arithmetic'')

Printable version
Privacy statement Using this site means you accept its terms Feedback to webmaster
1983-2007 Hewlett-Packard Development Company, L.P.