From: Yogesh Sharma (
Date: Mon Dec 06 2021 - 14:08:28 CST

Dr. Brian
Can you please share the code?
I am trying to compute the angle between molecule's principal axis and z
over trajectory. I was able to reach upto getting principal coordinates but
how to select only one vector of the three shown by arrow and then get
vecdot against z axis?

 *  with  regards*
*Yogesh Sharma*