forces calculation

From: peach gil (peachgil_at_yahoo.com)
Date: Tue Sep 26 2006 - 13:12:16 CDT

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Hi, NAMD people
   
  We want to calculate the force applied on each atom at time t based on the trajectory file and output file for our SMD simulation. Is there a tool available? Or just pick up three consecutive frames(t-dt, t and t+dt) from trajectory file, then calculate the force for each atom based on F=ma?
   
  Thanks
   
  Gilbert

                 
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