Ok, so I've read this
But I'm still a bit confused.
My question is this: How do I know when to use vs to solve.
Here's an example.
So i take
(skip a few steps)
(some quadratic magic)
Ok, so now, how do I know which is my which is my ?
Which one do I use to grind through the rest of this?
Does it matter?
If I solve the matrix for the zero vector using , I wind up with the vector .
With , however, I get .
Given initial conditions, this will effect my result, correct? But it only changes the signs of my constants. Which would be expected since the sign of the equations I end up will will also be opposite?
(sorry if this is a stupid question)