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<P class=MsoNormal style="MARGIN: 0mm 0mm 0pt"><SPAN lang=EN-US><FONT
face="ＭＳ Ｐ明朝">> My third question is what is the difference between LAPW1 and
LAPW1 -c?. </FONT></SPAN></P>
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face="ＭＳ Ｐ明朝"></FONT></SPAN> </P></FONT></DIV>
<DIV><FONT face="Times New Roman">Here -c switch means complex to indicate that
your system dose not have inversion symmetry,
e.g. exp(ikx)+exp(-ikx)=2cos(kx) is a real function, but exp(ikx) or
exp(-ikx) individually.</FONT></DIV>
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<DIV>Sincerely yours,<BR>S.
Jalali<BR>/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/<BR>Saeid Jalali
Asadabadi,<BR>Department of Physics, Faculty of Science,<BR>University of
Isfahan (UI), Hezar Gerib Avenue,<BR>81744 Isfahan, Iran.<BR>Phones:<BR>Dep. of
Phys. :+98-0311-793
2435<BR>Office
:+98-0311-793 2430<BR>Fax
No. :+98-0311-793
2409<BR>E-mail
: <A
href="mailto:sjalali@phys.ui.ac.ir">sjalali@phys.ui.ac.ir</A><BR>/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/</DIV></BODY></HTML>