Thanks for all the help so far. I'm new to SageMath and am trying to get my head around it.
I have a system of equations of the form...
Ax = 0
where A is a symbolic matrix filled with many trig functions and such. If I ask SageMath to "solve_right", it gives me a vector result of x=0 (duh). But, of course, that's not what I want. How do I get it to look for a non-trivial solution? Thanks, Eric