
 Usage

Computes the hyperbolic secant of the argument. The syntax
for its use is

     y = sech(x)



 Internals

The sech function is computed from the formula
 \[ \mathrm{sech}(x) = \frac{1}{\cosh(x)} \]


 Examples

Here is a simple plot of the hyperbolic secant function

  --> x = -2*pi:.01:2*pi;
  --> plot(x,sech(x)); grid('on');

 sechplot.png

* FreeMat_Documentation
* Mathematical_Functions
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