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

6       asinh, asinhf, asinhl - inverse hyperbolic sine function
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SYNOPSIS

9       #include <math.h>
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11       double asinh(double x);
12       float asinhf(float x);
13       long double asinhl(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       asinh(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 500 ||
20       _ISOC99_SOURCE; or cc -std=c99
21       asinhf(), asinhl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600
22       || _ISOC99_SOURCE; or cc -std=c99
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DESCRIPTION

25       The  asinh() function calculates the inverse hyperbolic sine of x; that
26       is the value whose hyperbolic sine is x.
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RETURN VALUE

29       On success, these functions return the inverse 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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ERRORS

39       No errors occur.
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CONFORMING TO

42       C99, POSIX.1-2001.  The variant returning double also conforms to SVr4,
43       4.3BSD, C89.
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SEE ALSO

46       acosh(3), atanh(3), casinh(3), cosh(3), sinh(3), tanh(3)
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COLOPHON

49       This page is part of release 3.22 of the Linux  man-pages  project.   A
50       description  of  the project, and information about reporting bugs, can
51       be found at http://www.kernel.org/doc/man-pages/.
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55GNU                               2008-08-05                          ASINH(3)
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