## ASEC Inverse Secant Function

Section: Mathematical Functions

### Usage

Computes the inverse secant of its argument. The general syntax for its use isy = asec(x)

where `x`

is an `n`

-dimensional array of numerical type.

### Function Internals

The`acosh`

function is computed from the formula

### Examples

Here is a simple plot of the inverse secant function--> x1 = -5:.01:-1; --> x2 = 1:.01:5; --> plot(x1,asec(x1),x2,asec(x2)); grid('on');