From: karthigeyan karthigeyantp (
Date: Sat Mar 14 2009 - 00:23:47 CDT

 Hai Vmd,

   I am writting a program for calculating the dihedral angle. In the
calculation my numerical part is exactly has such in vmd but i am not
getting the sign properly. I am getting all the angles in positive sign. can
any one give the formula which is used in the vmd.