CFLib.org – Common Function Library Project

Description:
Returns the Secant of an angle. The secant of a 90 degree angle is infinity. All angles are expressed in radians.

Return Values:
Returns a numeric value or string.

Example:

<CFSET x=0.785398163397>
<CFSET y=90*(Pi()/180)>
<CFOUTPUT>
  Given x=#x#<BR>
  Given y=#y#<BR>
  The Secant of #x# radians is: #Sec(x)#<BR>
  The Secant of #y# radians is: #Sec(y)#<BR>
  </CFOUTPUT>

Parameters:

Full UDF Source:

/**
 * Returns the secant of an angle.
 * 
 * @param x      Any angle measured in radians. 
 * @return Returns a numeric value or string. 
 * @author Rob Brooks-Bilson (rbils@amkor.com) 
 * @version 1, October 9, 2001 
 */
function Sec(x)
{
  if (x EQ 90*(Pi()/180)){
    return "infinity";
    }
  else {
    return 1/cos(x);
  }
}