Dear Liu: If you just want to perform q2r calculation, I do not think you have to get daynamic matrix manually. You can follow example 06 to fulfill your calculation ??
____________________________________ Hui Wang School of physics, Nankai University, Tianjin, China -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.democritos.it/pipermail/pw_forum/attachments/20090924/7660328e/attachment.htm