1SINH(3)                    Linux Programmer's Manual                   SINH(3)
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NAME

6       sinh, sinhf, sinhl - hyperbolic sine function
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SYNOPSIS

9       #include <math.h>
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11       double sinh(double x);
12       float sinhf(float x);
13       long double sinhl(long double x);
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15       Link with -lm.
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17   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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19       sinhf(), sinhl():
20           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
21               || /* Since glibc 2.19: */ _DEFAULT_SOURCE
22               || /* Glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
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DESCRIPTION

25       These functions return the hyperbolic sine of x, which is defined math‐
26       ematically as:
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28           sinh(x) = (exp(x) - exp(-x)) / 2
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RETURN VALUE

31       On success, these functions return the hyperbolic sine of x.
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33       If x is a NaN, a NaN is returned.
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35       If x is +0 (-0), +0 (-0) is returned.
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37       If x is positive infinity (negative infinity), positive infinity (nega‐
38       tive infinity) is returned.
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40       If the result overflows, a range error occurs, and the functions return
41       HUGE_VAL, HUGE_VALF, or HUGE_VALL, respectively, with the same sign  as
42       x.
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ERRORS

45       See  math_error(7) for information on how to determine whether an error
46       has occurred when calling these functions.
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48       The following errors can occur:
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50       Range error: result overflow
51              errno is set to ERANGE.  An  overflow  floating-point  exception
52              (FE_OVERFLOW) is raised.
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ATTRIBUTES

55       For  an  explanation  of  the  terms  used  in  this  section,  see at‐
56       tributes(7).
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58       ┌────────────────────────────────────────────┬───────────────┬─────────┐
59       │Interface                                   │ Attribute     │ Value   │
60       ├────────────────────────────────────────────┼───────────────┼─────────┤
61       │sinh(), sinhf(), sinhl()                    │ Thread safety │ MT-Safe │
62       └────────────────────────────────────────────┴───────────────┴─────────┘
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CONFORMING TO

65       C99, POSIX.1-2001, POSIX.1-2008.
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67       The variant returning double also conforms to SVr4, 4.3BSD, C89.
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SEE ALSO

70       acosh(3), asinh(3), atanh(3), cosh(3), csinh(3), tanh(3)
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COLOPHON

73       This page is part of release 5.13 of the Linux  man-pages  project.   A
74       description  of  the project, information about reporting bugs, and the
75       latest    version    of    this    page,    can     be     found     at
76       https://www.kernel.org/doc/man-pages/.
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80                                  2021-03-22                           SINH(3)
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