| Modules | Version: 1 Function Syntaxnumber math:abs(number) 
         The  An implementation of this extension function in the EXSLT math namespace must conform to the behaviour described in this document. Implementations
            Built-in support for  
 
            The following implementations of  
 Change HistorySubmitted: 2001-06-16 
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http://www.exslt.org/math/functions/abs/math.abs.1.html last modified 2002-11-12