Complex sentence: There are open questions at the frontiers of numerical analysis which try to deal with issues of numerical instability, such as nonlinear instability, but this article is written to be accessible to those who need only understand the simplest definition of a differential equation.
Split into simpler sentences: There are open questions at the frontiers of numerical analysis which try to deal with issues of numerical instability, such as nonlinear instability. This article is written to be accessible to those who need only understand the simplest definition of a differential equation.