May 6, 1991 ASINH 3

### NAME

asinh, asinhf - inverse hyperbolic sine function

### LIBRARY

Math Library (libm, -lm)

### SYNOPSIS

```double` asinh(```double x`)
```float` asinhf(```float x`)

### DESCRIPTION

The asinh(``) and asinhf(``) functions compute the inverse hyperbolic sine of the real argument

### RETURN VALUES

The asinh(``) and asinhf(``) functions return the inverse hyperbolic sine of x.

### SEE ALSO

acosh(3), atanh(3), exp(3), math(3)

### HISTORY

The asinh(``) function appeared in 4.3BSD.