For these models there are methods such as the perturbation method which can<span> be used to find an approximate analytical solution within a certain range. The </span>advantage<span> here over a </span>numerical<span> solution is that </span>you<span> end up with an equation (</span><span>instead of just a long list of numbers) which </span>you can<span> gain some insight from.</span>
2nd or 3rd option I hope I narrowed it down
It is less than. Any negative number compared to a positive number will be less than.
C=(-10;5). If you want an explanation I would be happy to explain it
