asinh(3m) — RISC
Name
asinh, acosh, atanh − inverse hyperbolic functions
Syntax
#include <math.h>
double asinh(x)
double x;
double acosh(x)
double x;
double atanh(x)
double x;
Description
The asinh, acosh, and atanh functions compute the designated inverse hyperbolic functions for real arguments.
Errors Because of Roundoff, Etc.
These functions inherit much of their error from the log1p() function.
Diagnostics
The acosh function returns the default quiet NaN if the argument is less than one.
The atanh function returns the default quiet NaN if the argument has an absolute value greater than or equal to one.