CFLib.org – Common Function Library Project

Sech(x)

Last updated October 9, 2001

author

Rob Brooks-Bilson

Version: 1 | Requires: CF5 | Library: MathLib

Description:
Returns the hyperbolic secant of an angle. All angles are expressed in radians.

Return Values:
Returns a numeric value.

Example:

<CFSET x=Pi()/2>
<CFOUTPUT>
Given x=#x#<BR>
The Sech of #x# radians is: #Sech(x)#
</CFOUTPUT>

Parameters:

Name Description Required
x Any angle expressed in radians. Yes

Full UDF Source:

/**
 * Returns the hyperbolic secant of an angle.
 * 
 * @param x 	 Any angle expressed in radians. 
 * @return Returns a numeric value. 
 * @author Rob Brooks-Bilson (rbils@amkor.com) 
 * @version 1.0, October 9, 2001 
 */
function Sech(x){
  return 2/(Exp(X)+Exp(-x));
}
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