CFLib.org – Common Function Library Project

Description:
Converts degrees Fahrenheit to degrees Rankine. Note that the Rankine temperature scale has an absolute zero (negative Rankine temperatures do not exist). If a temperature below -459.67 Fahrenheit (absolute 0) is passed, the funciton returns -1.

Return Values:
Returns a float.

Example:

<CFSET f=212>
<CFOUTPUT>
Given f=#f#<BR>
#f# degrees Fahrenheit = #FahrenheitToRankine(f)# degrees Rankine.
</CFOUTPUT>

Parameters:

Full UDF Source:

/**
 * Converts degrees Fahrenheit to degrees Rankine.
 * Minor enhancements by Rob Brooks-Bilson (rbils@amkor.com).
 * 
 * @param fahrenheit      Degrees Fahrenheit you want to convert to Rankine. 
 * @return Returns a float. 
 * @author Tony Blackmon (fluid@sc.rr.com) 
 * @version 1, September 17, 2001 
 */
function FahrenheitToRankine(fahrenheit)
{
  if (fahrenheit lt -459.67)
    return -1;
  else
    return fahrenheit + 459.67;
}