MATLAB Function Reference |

Inverse cosecant and inverse hyperbolic cosecant

**Syntax**

**Description**

```
Y = acsch(X)
```

returns the inverse hyperbolic cosecant for each element of `X`

.

The `acsch`

function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.

**Examples**

Graph the inverse hyperbolic cosecant over the domains and .

**Definition**

The hyperbolic inverse cosecant can be defined as

**Algorithm**

`acsc`

uses FDLIBM, which was developed at SunSoft, a Sun Microsystems, Inc. business, by Kwok C. Ng, and others. For information about FDLIBM, see http://www.netlib.org.

**See Also**

acsc | actxcontrol |