SECH Hyperbolic Secant Function

Section: Mathematical Functions

Usage

Computes the hyperbolic secant of the argument. The syntax for its use is 
   y = sech(x)

Function Internals

The sech function is computed from the formula

Examples

Here is a simple plot of the hyperbolic secant function 
--> x = -2*pi:.01:2*pi;
--> plot(x,sech(x)); grid('on');