CFLib.org – Common Function Library Project

Acosh(x)

Last updated November 29, 2001

author

Joel Cox

Version: 1 | Requires: CF5 | Library: MathLib

Description:
Returns the inverse hyberbolic cosine of a value. All angles are expressed in radians.

Return Values:
Returns an angle in radians.

Example:

<CFSET x=1.5>
  <CFOUTPUT>
  Given x=1.5<BR>
  The Acosh of #x# is: #Acosh(x)# radians
  </CFOUTPUT>

Parameters:

Name Description Required
x Any real number. Yes

Full UDF Source:

/**
 * Returns the inverse hyperbolic cosine of a value.
 * 
 * @param x 	 Any real number. 
 * @return Returns an angle in radians. 
 * @author Joel Cox (jlcox@goodyear.com) 
 * @version 1, November 29, 2001 
 */
function Acosh(x)
{
  Var RetVal = 0;
  if (x LTE 1.0) 
    RetVal = 0.0;
  else if (x GTE 1.0e10) 
    RetVal = Log(2) + Log(x);
  else
    RetVal = Log(x + Sqr((x - 1.0) * (x + 1.0)));
  Return(RetVal);
}
blog comments powered by Disqus

Search CFLib.org


Latest Additions

Kevin Cotton added
date2ExcelDate
May 5, 2016

Raymond Camden added
CapFirst
April 25, 2016

Chris Wigginton added
loremIpsum
January 18, 2016

Gary Stanton added
calculateArrival...
November 19, 2015

Sebastiaan Naafs - van Dijk added
getDaysInQuarter
November 13, 2015

Created by Raymond Camden / Design by Justin Johnson