<HTML><FONT FACE=arial,helvetica><FONT COLOR="#000000" FACE="Geneva" FAMILY="SANSSERIF" SIZE="2">Dear Developers,<BR>
<BR>
I am hacking a utility program for gmx and I need to do potential energy calculations in it. I have been searching through the code, and so far I cannot find the proper functions. Please point me in the right direction. <BR>
<BR>
Thank you ahead of time,<BR>
David</FONT><FONT COLOR="#000000" FACE="Geneva" FAMILY="SANSSERIF" SIZE="2"></FONT></HTML>