CFLib.org – Common Function Library Project

AreaCircle(radius)

Last updated July 17, 2001

author

Rob Brooks-Bilson

Version: 1 | Requires: CF5 | Library: MathLib

Description:
Calculates the area of a circle based on the radius.

Return Values:
Returns the area of the circle

Example:

<CFSET r=12>
  <CFOUTPUT>
  Given r=#r#
  The area of the circle is #AreaCircle(r)#
  </CFOUTPUT>

Parameters:

Name Description Required
radius 1/2 the diameter of the circle Yes

Full UDF Source:

/**
 * Calculates the area of a circle.
 * 
 * @param radius 	 1/2 the diameter of the circle 
 * @return Returns the area of the circle 
 * @author Rob Brooks-Bilson (rbils@amkor.com) 
 * @version 1, July 17, 2001 
 */
function AreaCircle(radius)
{
  Return (Pi()*(radius^2));
}
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