PRACTICAL USE

Our framework has been used to rewrite many routines from the book, PVI. During the rewriting process the rigorous error checking built into the C++ code revealed an error in the book in a Fortran solver for one operator. Although the simple routines were of a similar complexity to the original Fortran routines, the more complicated problems that involve combining existing operators in chains and array were much simpler to write in C++. We intend to continue this work and we intend to solve more complicated problems that discourage coding in Fortran.