I am wondering about this one actually: On Wednesday, May 30, 2012 6:24:33 AM UTC-7, Dima Pasechnik wrote: > > Or "finiding a parametric representation of the solutions"?
This is (one of ) a (large number) of problems I have been wondering about for awhile. And maybe finding a representative, but I haven't decided yet that I want to peek at answers to that one, so say I just wanted to know about making a parametric representation. I am happy to grant in advance arbitrary constraints which illustrate the approach. For example, lacking any real idea how to handle quadratic inequalities, I will do things like clamp them to *equality* and work out the system that way, then go back through and... uh... undo the latches on the inequalities one at a time. But. um. So far I have only done that when I can reliably linearize, which isn't really answering the question. This strikes me as a heck of a tricky problem. Oh. is it a lie and write, say, x{i}x{j} as X{ij}, and pretend to linearize that way? Does this go anywhere? Again, I failed to find a general parameterization which was more than an aesthetic change. Unless, of course, I had enough terms that the pairwise system could be directly solved, and then linearized. I apologize if these questions are naive. I'm having a hard time getting the shape of this problem into my head. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org