From: Ekta Khurana (ekta_at_vitae.cmm.upenn.edu)
Date: Tue Jan 11 2005 - 18:56:54 CST

 Hello, I want to find out the angle between two vectors, which can be
found using the dot product and acos. I know I can use vecdot to find dot
product in TCL. Could someone tell me what command I can use for acosine.
Thanks,
Ekta