1 .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
2 .\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk
3 .\" <mtk.manpages@gmail.com>
5 .\" %%%LICENSE_START(VERBATIM)
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11 .\" manual under the conditions for verbatim copying, provided that the
12 .\" entire resulting derived work is distributed under the terms of a
13 .\" permission notice identical to this one.
15 .\" Since the Linux kernel and libraries are constantly changing, this
16 .\" manual page may be incorrect or out-of-date. The author(s) assume no
17 .\" responsibility for errors or omissions, or for damages resulting from
18 .\" the use of the information contained herein. The author(s) may not
19 .\" have taken the same level of care in the production of this manual,
20 .\" which is licensed free of charge, as they might when working
23 .\" Formatted or processed versions of this manual, if unaccompanied by
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27 .\" References consulted:
28 .\" Linux libc source code
29 .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
31 .\" Modified 1993-07-24 by Rik Faith (faith@cs.unc.edu)
32 .\" Modified 1996-06-08 by aeb
33 .\" Modified 2002-07-27 by Walter Harms
34 .\" (walter.harms@informatik.uni-oldenburg.de)
36 .TH SINH 3 2010-09-20 "" "Linux Programmer's Manual"
38 sinh, sinhf, sinhl \- hyperbolic sine function
43 .BI "double sinh(double " x );
45 .BI "float sinhf(float " x );
47 .BI "long double sinhl(long double " x );
53 Feature Test Macro Requirements for glibc (see
54 .BR feature_test_macros (7)):
61 _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE\ >=\ 600 || _ISOC99_SOURCE ||
62 _POSIX_C_SOURCE\ >=\ 200112L;
71 function returns the hyperbolic sine of
74 is defined mathematically as:
77 sinh(x) = (exp(x) \- exp(\-x)) / 2
80 On success, these functions return the hyperbolic sine of
85 is a NaN, a NaN is returned.
89 is +0 (\-0), +0 (\-0) is returned.
93 is positive infinity (negative infinity),
94 positive infinity (negative infinity) is returned.
96 If the result overflows,
98 and the functions return
103 respectively, with the same sign as
106 .\" POSIX.1-2001 documents an optional range error (underflow)
108 .\" glibc 2.8 does not do this.
112 for information on how to determine whether an error has occurred
113 when calling these functions.
115 The following errors can occur:
117 Range error: result overflow
121 An overflow floating-point exception
126 The variant returning