asinh() - inverse hyperbolic sine function
#include <math.h>
double asinh (double x)
The asinh(3) function computes the inverse hyperbolic sine of the real argument x. For a discussion of error due to roundoff, see math(3).
The asinh(3) function returns the inverse hyperbolic sine of x.
acosh(3)
atanh(3)
exp(3)
infnan(3)
math(3)