Asech(x)
Last updated October 16, 2001
Version: 1 | Requires: ColdFusion 5 | Library: MathLib
Description:
Returns the inverse hyperbolic secant of a value. All angles are expressed in radians.
Return Values:
Returns a numeric value or string.
Example:
<CFSET y=2>
<CFOUTPUT>
Given x=#x#:<BR>
Given y=#y#<BR>
Asech(x)=#Asech(x)#<BR>
Asech(y)=#Asech(y)#<BR>
</CFOUTPUT>
Parameters:
| Name | Description | Required |
|---|---|---|
| x | 0 < x <= 1 | Yes |
Full UDF Source:
<cfscript>
/**
* Returns the inverse hyperbolic secant of a value.
*
* @param x 0 < x <= 1
* @return Returns a numeric value or string.
* @author Rob Brooks-Bilson (rbils@amkor.com)
* @version 1, October 16, 2001
*/
function Asech(x){
if (x lte 0)
return "undefined";
else
if (x gt 1)
return "undefined";
else
return Log((Sqr(-x*x+1)+1)/x);
}
</cfscript>
Search CFLib.org
Latest Additions
cfRssFeed
3 day(s) ago
structBlend
23 day(s) ago
IsZIPUK
23 day(s) ago
getTagContentAll
29 day(s) ago
ListReturnDuplicat...
1 month(s) ago