1SINH(3) Linux Programmer's Manual SINH(3)
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6 sinh, sinhf, sinhl - hyperbolic sine function
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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(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600
20 || _ISOC99_SOURCE; or cc -std=c99
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23 The sinh() function returns the hyperbolic sine of x, which is defined
24 mathematically as:
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26 sinh(x) = (exp(x) - exp(-x)) / 2
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29 On success, these functions return the hyperbolic sine of x.
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31 If x is a NaN, a NaN is returned.
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33 If x is +0 (-0), +0 (-0) is returned.
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35 If x is positive infinity (negative infinity), positive infinity (nega‐
36 tive infinity) is returned.
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38 If the result overflows, a range error occurs, and the functions return
39 HUGE_VAL, HUGE_VALF, or HUGE_VALL, respectively, with the same sign as
40 x.
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43 See math_error(7) for information on how to determine whether an error
44 has occurred when calling these functions.
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46 The following errors can occur:
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48 Range error: result overflow
49 errno is set to ERANGE. An overflow floating-point exception
50 (FE_OVERFLOW) is raised.
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53 C99, POSIX.1-2001. The variant returning double also conforms to SVr4,
54 4.3BSD, C89.
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57 acosh(3), asinh(3), atanh(3), cosh(3), csinh(3), tanh(3)
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60 This page is part of release 3.25 of the Linux man-pages project. A
61 description of the project, and information about reporting bugs, can
62 be found at http://www.kernel.org/doc/man-pages/.
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66 2008-08-05 SINH(3)