...the bottle of Champagne has already been emptied and the hangover is gone. This is because GiNaC release 1.2.2 has hit the FTP-server the day before yesterday. We apologize for not having sent out invitations for the release party to the public. Some of us simply couldn't afford spending tons of money on beverages for the VIPs (like we usually do). Anyways, here's the beef: * Added const_preorder_iterator and const_postorder_iterator classes (and associated methods ex::pre/postorder_begin/end()) providing tree traversal with iterators. * Fixed the LaTeX output of the varidx class. * Fixed bugs in series expansion and complex conjugation. * (p.i*p.i).get_free_indices() returns the correct result () instead of (.i). * Symbolic functions without any eval(), evalf() etc. functions now work properly. * integer_content(), content(), and primpart() now also work for polynomials with rational coefficients (calculating the LCM of coefficients' denominators). * Added method matrix::rank(). * Added function resultant(). * Added integer_content() function to ginsh. Enjoy! -richy. (Christian, I got an idea: bottle party next time!) -- Richard B. Kreckel <http://www.ginac.de/~kreckel/>