CFLib.org – Common Function Library Project

Description:
Convert a complex number stored as a structure by the Complex() UDF to a human readable form: a+bi. This is primarily intended as a quick output for debugging.

Return Values:
Returns a string

Example:

<cfoutput>
    <cfset z=ComplexNum(3,-10)>
    z = #ComplexNumToString(z)#
</cfoutput>

Parameters:

Full UDF Source:

/**
 * Convert a stored complex number to a string in the form a + bi.
 * Note that this function uses complex numbers stored as structures by the ComplexNum() UDF also available in this library.
 * 
 * @param ComplexNumber      Structure containing complex number you want converted to a string. 
 * @return Returns a string 
 * @author Matthew Walker (matthew@electricsheep.co.nz) 
 * @version 1, November 15, 2001 
 */
function ComplexNumToString(ComplexNumber) {
  if ( ComplexNumber.I LT 0 )
    return "#ComplexNumber.R# - #Abs(ComplexNumber.I)#i";
  else        
    return "#ComplexNumber.R# + #ComplexNumber.I#i";
}