<div>Dear users</div><div><br></div><div>I am quite confused by the naming used in ev.x</div><div><br></div><div>after going through ev.f90 i conclude that </div><div><br></div><div>Birch function used in this program is P(V) equation and for istate=1 i.e birch 1st order </div>
<div><br></div><div>is actually a 3rd order Birch-Murnaghan equation of state as mentiontioed in WIKIPEDIA page </div><div><br></div><div><a href="http://en.wikipedia.org/wiki/Birch%E2%80%93Murnaghan_equation_of_state">http://en.wikipedia.org/wiki/Birch%E2%80%93Murnaghan_equation_of_state</a></div>
<div><br></div><div>Please correct me if i m wrong. </div><div><br></div><div><br></div><div><br></div><div><br></div><br clear="all">Karandeep<br>Research Scholar<br>Physics Department,<br>IIT, Delhi<br>