Acsch(x)
Last updated October 9, 2001
Version: 1 | Requires: ColdFusion 5 | Library: MathLib
Description:
Returns the inverse hyperbolic cosecant of an angle. If angle is 0, returns "undefined". All angles are expressed in radians.
Return Values:
Returns a numeric value or string.
Example:
<CFOUTPUT>
Given x=#x#<BR>
The Acsch of #x# radians is: #Acsch(x)#
</CFOUTPUT>
Parameters:
| Name | Description | Required |
|---|---|---|
| x | Any angle expressed in radians. | Yes |
Full UDF Source:
<cfscript>
/**
* Returns the inverse hyperbolic cosecant of an angle.
*
* @param x Any angle expressed in radians.
* @return Returns a numeric value or string.
* @author Rob Brooks-Bilson (rbils@amkor.com)
* @version 1.0, October 9, 2001
*/
function Acsch(x){
if (x EQ 0)
return "undefined";
else
return Log((Sgn(x)*Sqr(x*x+1)+1)/x);
}
</cfscript>
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