Old 12-02-2012, 08:01 AM
  #4  
Std Deviation
Gets Weekends Off
 
Joined APC: May 2009
Position: Square root of the variance and average of the variation
Posts: 1,602
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Yeah, and the vast majority of my students trained in 1970's vintage eqipment anyway so retracts of that era are par for the course.
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