Hi You are using a symbolic solver for a rather large system of equations. Maybe it's not really possible to solve this in a sane way and therefore you don't get an answer. I suggest you to look into solving this numerically, especially because in the end you seem to be only interested in a numerical approximation.
http://www.sagemath.org/doc/reference/numerical/sage/numerical/optimize.html#sage.numerical.optimize.minimize and similar, there are even more solvers in numpy/scipy too. Harald -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en. For more options, visit https://groups.google.com/groups/opt_out.