CFLib.org – Cosh

Cosh(x)

Last updated October 9, 2001

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author

Joel Cox
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Version: 1 | Requires: ColdFusion 5 | Library: MathLib

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Description:
Returns the hyberbolic cosine of an angle. All angles are expressed in radians.

Return Values:
Returns a numeric value.

Example:

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

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

Parameters:

Name	Description	Required
x	Angle measured in radians.	Yes

Full UDF Source:

	
	
			
			
			
				
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				ColdFISH is developed by Jason Delmore.  Source code and license information available at coldfish.riaforge.org.  Version 3.1.1
				
			<cfscript>
/**
 * Returns the hyberbolic cosine of an angle.
 * 
 * @param x 	 Angle measured in radians. 
 * @return Returns a numeric value. 
 * @author Joel Cox (&#106;&#108;&#99;&#111;&#120;&#64;&#103;&#111;&#111;&#100;&#121;&#101;&#97;&#114;&#46;&#99;&#111;&#109;) 
 * @version 1, October 9, 2001 
 */
function Cosh(x)
{
	Return((Exp(x) + Exp(-x)) / 2);
}
</cfscript>
		<cfscript>
/**
 * Returns the hyberbolic cosine of an angle.
 * 
 * @param x      Angle measured in radians. 
 * @return Returns a numeric value. 
 * @author Joel Cox (jlcox@goodyear.com) 
 * @version 1, October 9, 2001 
 */
function Cosh(x)
{
    Return((Exp(x) + Exp(-x)) / 2);
}
</cfscript>