This section introduces the reader gradually to the use of FlexPDE in the solution of systems of partial differential equations.
We begin with a discussion of the basic character of FlexPDE. We then construct a simple model problem and proceed to add features to the model.
The result is a description of the most common features of FlexPDE in what we hope is a meaningful and understandable evolution that will allow users to very quickly become accustomed to the use of FlexPDE and to use it in their own work.
No attempt is made in this manual to present a complete description of each command or circumstance which can arise. Detailed descriptions of each command are presented in the Problem Descriptor Reference section.