Subject: Question on writing Charmm's input file

From: Ma Chi Chiu <martin$at$yangtze.hku.hk>
Date: Wed, 30 Jul 2003 00:51:25 +0800 (HKT)

Dear all,

My question is how to calculate the force or interaction force with 
CHARMM and how to write the corresponding input file? 

Thank you very much

yours,
Martin