# asec, asech

## Purpose

Inverse secant and inverse hyperbolic secant.

## Synopsis

    Y = asec(X)
    Y = asech(X)

## Description

`asec` and `asech` operate element-wise on matrices. Their domains and ranges include complex values. All angles are in radians.

`asec(X)` returns the inverse secant for each element of `X`.

`asech(X)` returns the inverse hyperbolic secant for each element of `X`.

## Algorithm

## See Also

    sec, sech

(c) Copyright 1994 by The MathWorks, Inc.