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)
6 .\" Permission is granted to make and distribute verbatim copies of this
7 .\" manual provided the copyright notice and this permission notice are
8 .\" preserved on all copies.
10 .\" Permission is granted to copy and distribute modified versions of this
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16 .\" manual page may be incorrect or out-of-date.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
24 .\" the source, must acknowledge the copyright and authors of this work.
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 2017-09-15 "" "Linux Programmer's Manual"
38 sinh, sinhf, sinhl \- hyperbolic sine function
43 .BI "double sinh(double " x );
44 .BI "float sinhf(float " x );
45 .BI "long double sinhl(long double " x );
51 Feature Test Macro Requirements for glibc (see
52 .BR feature_test_macros (7)):
59 _ISOC99_SOURCE || _POSIX_C_SOURCE\ >=\ 200112L
60 || /* Since glibc 2.19: */ _DEFAULT_SOURCE
61 || /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
65 These functions return the hyperbolic sine of
68 is defined mathematically as:
71 sinh(x) = (exp(x) \- exp(\-x)) / 2
74 On success, these functions return the hyperbolic sine of
79 is a NaN, a NaN is returned.
83 is +0 (\-0), +0 (\-0) is returned.
87 is positive infinity (negative infinity),
88 positive infinity (negative infinity) is returned.
90 If the result overflows,
92 and the functions return
97 respectively, with the same sign as
100 .\" POSIX.1-2001 documents an optional range error (underflow)
102 .\" glibc 2.8 does not do this.
106 for information on how to determine whether an error has occurred
107 when calling these functions.
109 The following errors can occur:
111 Range error: result overflow
115 An overflow floating-point exception
119 For an explanation of the terms used in this section, see
125 Interface Attribute Value
130 T} Thread safety MT-Safe
133 C99, POSIX.1-2001, POSIX.1-2008.
135 The variant returning