The ABINIT Users Mailing List ( CLOSED )

[liuyudong97@mails.tsinghua.edu.cn]

Dear all:
Abinit seems to permit the relax a atom in a fixed plane by employing the 
structural optimization command------nconeq, natcon, iatcon, and wtatcon.I 
guess that equations' formulasim possible is xi+yi=0.5 or sth.

 Now,My question is: 

How to use these command (or constrait equation) exactly? Can an expert show 
me an example?
your help will be greatly appreciated!

by
yours
Yudong Liu