From: //noreply@axelvogt.de   
      
   On 25.07.2016 00:48, Nasser M. Abbasi wrote:   
   > I tried this on Maple, Mathematica, MuPad (part of Matlab) and Matlab.   
   >   
   > Asked for maximum of I and 1.0, where I=sqrt(-1).   
   >   
   > The first three rejected the command as invalid, since   
   > one of the numbers in the list is complex. Matlab   
   > accepted it!   
   ...   
      
   https://en.wikipedia.org/wiki/Ordered_field   
      
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