Section (3) asinh
asinh, asinhf, asinhl — inverse hyperbolic sine function
||long double x
These functions calculate the inverse hyperbolic sine of
x; that is the value
whose hyperbolic sine is
On success, these functions return the inverse hyperbolic
x is a NaN, a
NaN is returned.
x is +0
(−0), +0 (−0) is returned.
x is positive
infinity (negative infinity), positive infinity (negative
infinity) is returned.
For an explanation of the terms used in this section, see attributes(7).
C99, POSIX.1-2001, POSIX.1-2008.
The variant returning double also conforms to SVr4, 4.3BSD.
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Lewine_zsingle_quotesz_s _POSIX Programmer_zsingle_quotesz_s Guide_ (O_zsingle_quotesz_Reilly & Associates, 1991)
386BSD man pages
Modified 1993-07-24 by Rik Faith (faithcs.unc.edu)
Modified 2002-07-27 by Walter Harms