Dear Benhour, Thank you for providing a little more context, but you still have not articulated what the actual problem is. What exactly do you mean by "I have some problem with defining elasticity matrices"?
Please see this post <https://groups.google.com/forum/#!topic/dealii/GRZMUTLIm2I>, in particular the section titled "*How to best formulate a question*". Regards, J-P -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.